Option B, Genetically altered plants could make it into the human food chain is not a reasonable concern about CRISPR-Cas9's ability to edit human cells.
Large DNA deletions at target locations caused by CRISPR/Cas9 are a significant safety concern. These substantial deletions can have a base-pair range human cells of several hundred to several thousand . It is yet unknown what process led to the formation of these significant deletions. 1) the extent to which CRISPR usage should be allowed; 2) access to CRISPR applications; and 3) if a regulatory framework (or frameworks) for clinical research involving human subjects should include all forms of human genome editing, including editing of the human cells.
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TRUE/FALSE. like all other sensory pathways, the nerve impulses associated with olfaction are routed through the thalamus on the way to the primary olfactory cortex.
It is FALSE that all other sensory pathways, the nerve impulses associated with olfaction are routed through the thalamus on the way to the primary olfactory cortex.
The olfactory nerve, also called cranial nerve I, the first cranial nerve, or just CN I, is a cranial nerve that houses sensory nerve fibers related to the sense of smell. Our olfactory system and sense of smell are made possible by this nerve. The shortest sensory nerve is the first cranial nerve. The olfactory nerve originates in the brain and terminates in the upper inside portion of the nose.
The olfactory receptor neurons' afferent nerve fibers deliver nerve impulses concerning scents to the central nervous system (olfaction). The olfactory nerve, which is descended from the embryonic nasal placode, is relatively unique among the cranial nerves in that it has some regeneration potential if injured. The olfactory mucosa in the upper section of the nasal cavity is the site of the origin of the sensory olfactory nerve.
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Is this hypothesis supported? Why or why not? The hypothesis is NOT supported. The egg in the corn syrup lost weight (water) over time, indicating that com syrup is hypertonic to the egg
The hypothesis is NOT supported. The egg in the deionized water lost weight (water) over time, indicating that deionized water is hypertonic to the egg. The hypothesis is supported. Both eggs gained weight (water) over time, indicating that both solutions are hypotonic to the egg. You cannot tell from the data provided whether the hypothesis is supported or not
The premise cannot be proven. Corn syrup is hypotonic solution to the egg, as evidenced by the fact that embryo in the corn syrup gradually lost weight (water).
What is an example of a hypothesis?Example: Hypothesis The amount of happiness increases with daily sun exposure. The assumed cause in this example and the predictor variables is sun exposure. The assumed impact, or dependent variable, is the degree of happiness.
Why is it called hypothesis?Hypothesis originally refers to a synopsis of a classical drama's storyline. The word "hypothesis" is English is derived from the ancient Greek word "hypothesis," which means "putting or setting beneath" in its literal or etymological sense. In more modern usage, the word also means "supposition."
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Match structures in the left column with their descriptions in the right column.1. anus A. accessory digestive organ that produces bile2. appendix (vermiform) B. accessory digestive organ that produces insulin3. cecum C. blind pouch attached to the cecum4. colon D. connects the mouth and stomach5. duodenum E. first part of the small intestine6. esophagus F. first part of the large intestine7. gallbladder G. last part of the large intestine8. ileum H. major portion of the large intestine9. jejunum I. one of three pairs that secrete digestive juices into the mouth10. liver J. outlet of the large intestine11. pancreas K. portion of small intestine that joins the large intestine12. rectum L. second location of chemical digestion13. salivary gland M. second part of small intestine14. stomach N. storage sac for bile
1. anus - J. large intestinal outflow
2. appendix (vermiform) - C. The blind pouch connected to the cecum,
3. Cecum- F. the first big intestine segment
4. colon- H. the big intestine's main section
5. Duodenum- E. the small intestine's initial section
6. esophagus- D. links the stomach and mouth.
7. gallbladder- storage sac in the bile
8. ileum-K. the segment of the small intestine that connects to the large intestine
9. jejunum -M. second small intestine segment
10. liver- A. bile-producing auxiliary digestive organ
11. pancreas- auxiliary digestive organ that makes insulin
12. Rectum- G. the big intestine's last segment
13. salivary gland- I. one of the three pairs whose mouth-borne digestive fluids are secreted.
The human body's digestive system consists of a collection of organs that operate in concert to transform food into energy. The gastrointestinal tract, along with auxiliary organs including the liver, pancreas, and gallbladder, make up the digestive system anatomically. The mouth, stomach, esophagus, small intestine, and large intestine, which houses the rectum and anus, are among the hollow organs that make up the gastrointestinal tract (GI tract).
The right answers are 1—J, 2—C, 3—F, 4—H, 5—E, 6—D, 7—N, 8—K, 9—M, 10—A, 11—B, 12—G, 13—I, and 14—L.
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which metabolic pathway is common to both cellular respiration and fermentation?; what is fermentation; lactic acid fermentation; how is fermentation involved in the production of atp; what is the purpose of fermentation?; where does fermentation take place in the cell; which step of fermentation is responsible for the majority of atp production?; because fermentation does not require oxygen, it is said to be
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contraction and relaxation of the muscle fibers of the cause changes to the size of the pupil.
Contraction and relaxation of the muscle fibers of the Iris cause changes to the size of the pupil.
What is eye?
You can see with the use of your eyes. They receive light from the environment and transmit visual data to your brain. Your eyes have a 200-degree field of view, which includes the front and sides of you (peripheral vision). Your eyes' various components work together to let you view images, motion, and depth. Your eyes are capable of seeing millions of distinct colors.Parts of eye:
Your eye's colorful part is called the iris.The iris is covered by a transparent layer called the cornea. The cornea is composed of water and collagen.It stretches and contracts to regulate how much light enters your eye, pupil.the white portions of your eye that around the iris, or the sclera.Conjunctiva, a transparent, delicate tissue that lines the interior of your eyelids and covers the sclera.lens that is positioned behind the pupil. It concentrates lightThe cells that line the interior of the back of your eye are called retina.A little portion of the retina called the macula. It helps you see small details and color, and is responsible for your central vision.Behind the retina is the optic nerve. The retina sends impulses to your brain, which interprets the data to let you know what you are seeing.Your eye's location and movement, the amount of light that enters it, and your eyes' capacity for focus are all governed by muscles.A clear gel called vitreous fills the whole space inside your eye. It safeguards and preserves the eye's form.Hence, iris causes changes in the size of pupil
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The molecules listed below all participate in the reaction catalyzed by the pyruvate dehydrogenase complex (PDC). Select the answer that represents the order of their involvement in the conversion of pyruvate to acetyl-CoA.
I. NAD+
II. Coenzyme A (CoA-SH)
III. Thiamine Pyrophosphate (TPP)
IV. Lipoate (lipoamide)
V. FAD
III. Thiamine Pyrophosphate (TPP), IV. Lipoate (lipoamide), II. Coenzyme A (CoA-SH), V. FAD, I. NAD+
What 5 processes does pyruvate dehydrogenase catalyze?The pyruvate dehydrogenase complex processes require five coenzymes: lipoic acid, nicotinamide adenine dinucleotide, flavin adenine dinucleotide, coenzyme A, and thiamine pyrophosphate.
What are the three different types of reactions that enzymes can catalyze?Groups can be transferred from one molecule to another with the help of transferases. Hydrolases use water to dissolve a substrate (hydrolysis). Transfer of e-atoms between molecules during oxidation-reduction is carried out by oxidoreductase.
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What sex cells are produced in meiosis?; Are sex cells produced by meiosis identical?; Are sex cells haploid or diploid?
Gametes, or sex cells, are created during meiosis. There are four haploid daughter cells formed during meiosis (containing half as many chromosomes as the parent cell).
A cell with a single set of chromosomes is called haploid. The number of chromosomes in sperm or egg cells, often known as gametes, is also referred to as haploid. In humans, gametes are haploid cells with 23 chromosomes—one of each chromosomal pair found in diplod cells—and are hence haploid. The haploid number, commonly known as n, is used to indicate the number of chromosomes in a single pair. n = 23 for people.
Half of the chromosomes found in somatic cells, or the body's typical diploid cells, are found in gametes. Meiosis, a type of cell division that cuts the number of chromosomes in a parent diploid cell in half, produces haploid gametes.
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What are the effects of consuming a diet made up mostly of fats?; What are the effects of a diet composed largely of fats on liver metabolism?; Does the citric acid cycle break down fats?; What is the result of the citric acid cycle?
1. The amount of "bad" LDL cholesterol in your blood can increase if you consume too much saturated fats. 2. earing a high-fat, high-sugar diet has negative effects. 3. Yes, lipids are broken down via the citric acid cycle. 4. Results of The citric acid cycle, which links the metabolism of carbohydrates, fats, and proteins, is a crucial metabolic route.
Consuming excessive amounts of saturated fats can elevate "bad" LDL cholesterol levels, which raises your risk of heart disease and stroke. By transporting excess cholesterol from areas of the body to the liver, where it is excreted, "good" HDL cholesterol has a beneficial effect. According to a recent study by researchers from Weill Cornell Medicine and Memorial Sloan Kettering Cancer Center, eating a high-fat, high-sugar diet creates a detrimental accumulation of fat in the liver that may not go away even after converting to a better diet.
The citric acid cycle is the body's main catabolic pathway since it is where the breakdown products of the main amino acids, carbohydrates, and fatty acids that make up cells are converted to carbon dioxide. A vital metabolic process that links the metabolism of proteins, fats, and carbohydrates is the citric acid cycle. Eight enzymes carry out the processes of the cycle, totally oxidizing acetate (a two-carbon molecule) into acetyl-CoA and two molecules of carbon apiece.
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Correct Question:
1. What are the effects of consuming a diet made up mostly of fats?
2. What are the effects of a diet composed largely of fats on liver metabolism?
3. Does the citric acid cycle break down fats?
4. What is the result of the citric acid cycle?
the structure found between the epiphysis and diaphysis in a child and is a site of bone growth is the
The structure found between the epiphysis and diaphysis in a child and is a site of bone growth is the epiphyseal plate
The epiphysis is the adjusted finish of a long bone, at its joint with neighboring bone(s). Between the epiphysis and diaphysis (the long waist of the long bone) lies the metaphysis, including the epiphyseal plate (development plate).
At the joint, the epiphysis is covered with articular ligament; underneath that covering is a zone like the epiphyseal plate, known as subchondral bone. The epiphysis is loaded up with red bone marrow, which produces erythrocytes (red platelets).
A pseudo-epiphysis is an epiphysis-looking finish of a bone where an epiphysis isn't regularly located. A pseudo-epiphysis is portrayed by a cross over score, seeming to be like a development plate. In any case, these cross over indents miss the mark on commonplace cell sections found in typical development plates, and don't contribute fundamentally to longitudinal bone development.
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(Complete question) is:
the structure found between the epiphysis and diaphysis in a child and is a site of bone growth is the_______.
An ACTH injection would cause an increase in the secretion of
thyroxin (T4)
antidiuretic hormone
ACTH
glucocorticoids
An ACTH injection would cause an increase in the secretion of antidiuretic hormone.
What is ACTH?ACTH works on G protein-coupled receptors on extracellular membranes on zona fasciculata and zona reticularis of the adrenal cortex. cAMP is the secondary messenger system.
Activation of the g-couple receptor activates adenylyl cyclase, thus increase cAMP production. ACTH plays a role in glucose metabolism and immune function.
The circadian rhythm influences cortisol secretion. The highest levels of cortisol are seen in the early morning, and the lowest levels are in the evening. This concept is important for diagnostic testing.
Therefore, An ACTH injection would cause an increase in the secretion of antidiuretic hormone.
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the G1 checkpoint is the point in the cycle where the cell goes into or out of G0. Predict the result of a mutation that allows a cell to move past checkpoint G1 even though the cell has not grown sufficiently. the daughter cell would be small and possibly not able to store enough nutrients within the cell to survive.
The result of a mutation that allows a cell to move past checkpoint G1 even though the cell has not grown sufficiently will lead to the formation of faulty daughter cells that likely will be unable to survive in normal conditions due to the lack of nutrients and cellular products to continue with the progression of the cell lifespan.
What are the stages of the cell cycle?The stages of the cell cycle can be divided into interphase and cell division (either miosis or meiosis cell division).
In turn, the interphase can be divided into two consecutive periods of cell growth called G1 and G2 where the cell synthesizes all material required for the cell and a final synthesis period.
Therefore, with this data, we can see that the stages of the cell cycle include G1, G2 and S phases, which are required to continue in the cell lifespan.
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Genysys, a technology services provider, has been experiencing losses in some of its regional offices for the past few months. As a result, it closes some offices and downsizes its workforce. It is also offering early retirement packages to its senior employees so that they may consider retiring at an early age. In the given scenario, Genysys is using a _____.
a stability strategy
b diversification strategy
c growth strategy
d reduction strategy
It thus reduces its employees and closes several offices. In order to encourage senior employees to think about retiring early, it is also providing early retirement packages to them. Genysys is employing a reduction strategy in the described situation.
Which of the following claims about a narrative job analysis is accurate in the context of job analysis techniques?Because the narratives in a work analysis are frequently individualized, it might be challenging to compare the duties of other jobs.
What factors influence employee turnover and how does it affect the company?High employee turnover is expensive and can harm your company. Lack of communication, encouragement, and a negative workplace culture all contribute to high turnover.
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many pollutants from coal-fired power plants are properly managed today. which of the following is currently considered to be the biggest threat to the environment?
Currently, carbon dioxide is thought to pose the greatest threat to the environment.
Explain what an environment is ?Environment may be summed up as the impacts of all the eternal as non-living things that have an impact on human life. Non-living or abiotic concepts include water, land, sunshine, rocks, and air, whereas all live or biotic elements include animals, plants, forests, marine, and birds.
What role does the environment play?Environment is crucial to both healthy living or the continuation of life on Earth. Earth is able to learn about different living beings, well we all rely on those for basic foodstuffs, air, and water. Therefore, it is necessary that each individual protect and maintain our ecology.
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Data for energy consumption is available for residential, commercial, and industry sectors in Arizona. In 2010, energy consumption consisted of: 27% for residential energy uses; 15% for industry; 24% for commercial; and 34% for transportation.1) Which of the following personal actions could have the greatest impact in reducing greenhouse gas emissions?A) eating organicallyB) driving a hybrid car using ethanolC) increasing home insulationD) recycling aluminum to the nearest industryE) switching to all compact fluorescent bulbs for lighting
driving a hybrid car using ethanol could have the greatest impact in reducing greenhouse gas emissions compare to others
Warming of the globe is caused by greenhouse gases that trap heat. Burning fossil fuels for electricity, heat, and transportation is the main cause of greenhouse gas emissions from human activity. The majority of greenhouse gas emissions come from the transportation sector. Burning fossil fuels for our vehicles, trucks, ships, trains, and airplanes is the main source of transportation-related greenhouse gas emissions. Petroleum-based fuels, which largely consist of gasoline and diesel, account for over 90% of the fuel utilized for transportation.
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which of the following statements is supported by the information in this image and is consistent with your knowledge regarding genomic architecture in prokaryotes and eukaryotes?
the following statements is supported by the information in this image and is consistent with your knowledge regarding genomic architecture in prokaryotes and eukaryotes
A nuclear spliceosome is required in eukaryotic cells in order to cut off introns from RNA.
The removal of introns from nuclear pre-mRNA is catalyzed by the spliceosome, an enormous RNA-protein complex. The spliceosome is made up of three primary RNA-protein subunits, the U1, U2, and [U4/U6.U5] small nuclear ribonucleoprotein particles (snRNPs), as well as an extra group of non-snRNP protein splicing factors, according to a wide range of biochemical and genetic research. Unraveling the interactions that take place between these variables during the splicing reaction is moving forward quickly. The spliceosome is now being understood to be a highly dynamic structure that steps its way up pre-mRNA transcripts and is organized, at least in part, by complex base-pairing interactions between small nuclear RNAs (snRNAs) and the intron substrate. Both mammalian and yeast can detect many of these interactions.
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What are the 4 cell structures that would be found in all cells of all types?; Which cell structures do all types of cells have?; What are these types of cells and what are their functions?; What is the process by which different types of cells with the same structure and functions are formed?
a). The 4 cells are cellular membrane, ribosomes, cytoplasm, and DNA. b). The structures which can be discovered in all styles of cells are the cellular membrane, ribosomes. c). It protects the cellular and facilitates alter. d). Cell differentiation is the procedure through which cells turn out to be specialised to carry out distinctive functions.
a). All cells proportion 4 not unusualplace additives: 1) a plasma membrane, an outer overlaying that separates the cellular's indoors from its surrounding environment; 2) cytoplasm, including a jelly-like area in the cellular wherein different mobile additives are discovered; 3) DNA, the genetic fabric of the cellular; and 4) ribosomes.
b). The systems which can be discovered in all styles of cells are the cellular membrane, ribosomes, cytoplasm, and DNA. Cell shape consists of all of the systems that make up a cellular: the cellular floor membrane and on occasion cellular wall, the organelles and the cytoplasm. Different cellular kinds have distinctive systems: Prokaryotes range from eukaryotes. Plant cells have distinctive systems than animal cells. And distinct cells might also additionally have extra or fewer organelles relying at the characteristic of the cellular.
c). The cellular membrane, additionally referred to as the plasma membrane, is the outer barrier of the cellular. It protects the cellular and facilitates alter what is going inside and outside thru selective permeability. Mitosis is a sort of cellular department wherein one cellular (the mother) divides to provide new cells (the daughters) which can be genetically same to itself. In the context of the cellular cycle, mitosis is the a part of the department procedure wherein the DNA of the cellular's nucleus is break up into identical units of chromosomes.
d). Different organisms all have distinctive cellular kinds, and the procedure of cellular differentiation lets in for cells to have a comparable shape or even comparable DNA, however have very distinctive multicellular systems. Cell differentiation is the procedure through which cells turn out to be specialised for you to carry out distinctive functions. Multicellular organisms start as simply one unmarried cellular—a fertilized egg.
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Correct Question:
a. What are the 4 cell structures that would be found in all cells of all types?;
b. Which cell structures do all types of cells have?;
c. What are these types of cells and what are their functions?;
d. What is the process by which different types of cells with the same structure and functions are formed?
What is the false belief that there is a relationship between physical traits and certain behavioral traits such as intelligence and morality?a. Biological determinismb. Monogenismc. Homeostasisd. Polygenisme. Eugenics
The fallacious notion that there is a connection between certain behavioral attributes, such as intelligence and morality and physical characteristics is known as biological determinism.
The biological determinism theory holds that the majority of physical and mental traits of an individual are predetermined at conception by hereditary variables that are passed from parent to child.
The notion that all human behavior is intrinsic and predetermined by DNA is known as biological determinism. Evidence for biological determinism can be found in studies of the human genome. For instance, studies have discovered that the gene IGF2r may play a role in intellect.
According to the biological determinism theory, most decisions people make are influenced by their parents' genetic composition. It is also known as biologism, bio-determinism, and genetic determinism.
Option A is the right response, so that is what it is.
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this type of inversion combined with the combustion of during december of 1952 resulted in thousands of deaths from the resulting smog.
The pollution that arose from the a temperature inversion and burning in December 1952 caused thousands of deaths.
What is the combustion process?An item quickly mixes to oxygen during the chemical process of combustion to produce heat. Oxygen and fuel are terms used to describe the original substance and the oxygen's source, respectively. The fuel can be a solid, liquid, and gas, although it is commonly a liquid for airplane propulsion.
Which type of reaction is combustion?The majority of combustion reactions involve an oxidant and a fuel in highly exothermic redox reactions. In a combustion reaction, the gasoline that has been oxidized is often the final result (which is mostly liberated in the gaseous state). This is frequently called smoke.
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if a dna strand has 80% cytosine bases how many guanine bases would a normal dna strand hav wirh no murarions
A=T and G=C so if a a dna strand contains 80 cytosine bases then the same amount guanine is there in a dna that is 80 guanine bases
Chargaff's rules states that DNA from any cellular of all organisms should have a 1:1 ratio of pyrimidine and purine bases and, greater particularly, that the amount of guanine is identical to cytosine and the quantity of adenine is equal to thymine.
There are 4 nucleotides, or bases, in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T). these bases shape unique pairs (A with T, and G with C).
RNA is single-stranded, and as a consequence, no base pairing occurs. think of a strand of DNA. every base pairs with a specific accomplice, permitting us to determine their percentages: adenine and thymine are continually same, and cytosine and guanine are always same.
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which of the following statements are consistent with the structure and function of intermediate filaments? Intermediate filaments can connect cells at cell-cell junctions called desmosomes.
The statements which are consistent with structure and function of intermediate filaments are about number of strands, mechanical strength and cell junctions, which suggests that option A, B, D are the right answer.
Each filament is made of eight strands which are made from staggered tetramers linked end to end. The intermediate filaments protect cells from mechanical stress because of their high tensile strength and resist stretching. Desmosomes are intercellular junctions which enable cell to cell adhesion and anchor the intermediate filament network to the plasma membrane. Intermediate filaments are found in the nuclear lamina inside the body. Intermediate filaments are very stable structures which form the true skeleton of the cell. It also provides elasticity to the sarcomere.
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To refer to complete question, see below:
Which of the following statements are consistent with the structure and function of intermediate filaments? choose one or more
A.) each filament is made of eight strands, and each strand is made from staggered tetramers linked end to end
B.) intermediate filaments protect cells from mechanical stress because they have high tensile strength and resist stretching
C.) intermediate filaments are constructed of identical subunits found in all eukaryotic cells
D.) intermediate filaments can connect cells at cell-cell junctions called desmosomes
at the end of tca cycle, glucose is converted to the final product, co2, and all the energy are released in the form of atp/gtp.
The energy released in form of ATP are 6 NADHs, 2 ATPs and 2 FADH2 as the end products of TCA cycle.
What is the TCA cycle?Tricarboxylic acid cycle is also known as Krebs or citric acid cycle. It can be described as the primary source of energy for cells and an essential component of aerobic respiration.
The TCA cycle converts acetyl coenzyme A (acetyl CoA)'s available chemical energy into the reducing power of nicotinamide adenine dinucleotide (NADH). The end products of this cycle are 6 NADHs, 2 ATPs and 2 FADH2 from each molecule of glucose yielding two molecules of acetyl-CoA.
The complete question is:
At the end of tca cycle, glucose is converted to the final product, co2, and all the energy are released in the form of atp/gtp. What are the end products of this cycle?
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match the cell type with its function. thin shape allows for rapid gas diffusion engulf microorganisms or particulate material secretes pulmonary surfactant
Allows for quick gas diffusion, engulfs microorganisms or particulate debris, and secretes pulmonary surfactant are alveolar macrophages.
What exactly are microbes?a live organism that needs a microscope to be seen. Examples of microorganisms are bacterial, fungus, algal, and protozoa. Viruses are not considered to be living organisms, yet they are sometimes categorised as microorganisms.
Why do germs have a benefit?For instance, the human body includes 10 bacteria for every human cell, and these microbes all help to strengthen the immune system, promote digestion, produce vitamins And nutrients, and detoxify poisons. Naturally, bacteria are required for the creation of many foods we consume, including grains, cheese, and wine.
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which of the following double mutants could show synthetic genetic enhancement? select all that apply. A) Two null mutants (A, B) in genes with redundant function (A -> C, B -> C). B) Two hypomorphic mutants (A, B) in the same linear pathway (A -> B -> C). C) A constitutively-active mutant (A) and a null mutant (B) in genes with redundant function (A -> C, B -> C). D) Two null mutants (in A and B) in the same linear pathway (A -> B -> C)
The correct option in which double mutants could show synthetic genetic enhancement is B)Two hypomorphic mutants (A, B) in the same linear pathway (A -> B -> C).So, correct option is B.
Double mutants portrays a person that is conveying homozygous transformations in two distinct qualities. With regards to mouse hereditary qualities, a twofold freak is generally delivered by crossing individual heterozygous for transformations in two distinct qualities.
In science, and particularly in hereditary qualities, a freak is a life form or another hereditary person emerging or coming about because of a case of change, which is by and large a modification of the DNA succession of the genome or chromosome of a creature. A trademark wouldn't be noticed normally in an example.
The term mutant is likewise applied to an infection with a modification in its nucleotide succession whose genome is in the atomic genome. The regular event of hereditary changes is indispensable to the course of development.
Hence, correct option is B.
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preganglionic fibers of parasympathetic neurons are present in all of the following cranial nerves except N _____.
preganglionic fibers of parasympathetic neurons are present in all of the following cranial nerves except N . True
All somatic motor neurons, all ANS preganglionic neurons, and postganglionic parasympathetic nerve fibers all release acetylcholine.While the somatic nervous system can only innervate skeletal muscles, the ANS is in charge of activating the smooth muscles, skeletal muscles, and glands. The peripheral nervous system has acetylcholine neurons in every area. Of contrast, motor neurons in the somatic nervous system discharge acetylcholine onto skeletal muscle.It should be noted that the nerves play a role in managing the internal urethral sphincter's opening and closing as well as the process of controlling the urinary bladder's emptying. it can be inferred that the pelvic splanchnic nerves carry parasympathetic preganglionic nerve fibers that supply the ciliary muscle and the pupillary constrictor muscle.
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The hypothalamus and core thermoreceptors notice if body temp too low. The hypothalamus signals smooth muscle in blood vessels to vasoconstrict and skeletal muscle to shiver. This activity causes body temp to rise, which is again noticed by hypothalamus & core thermoreceptors, so the hypothalamus turns off these heat gain mechanisms. In this scenario, which of the following state-ments is correct?
A. The scenario describes positive feedback in action.
B. The core thermoreceptors are the effector organs.
C. The hypothalamus is the control centre.
D. Skeletal muscle is the efferent pathway to the effector organ.
Answer is C: The hypothalamus interprets the sensory input and determines the response. Choice A is wrong as this is negative feedback. The effector organs are the skeletal muscles (which are not a "pathway").
The control center is the hypothalamus. When body temperature is too low, the hypothalamus and core thermoreceptors detect it.
Which of the following describes a body's negative feedback reaction to hyperthermia?The body has a negative feedback system that regulates body temperature. Shivering or sweating in reaction to an increase or decrease in body temperature will undo the effect of the change.
How does feedback fit into thermoregulation?A prime example of negative feedback is thermoregulation. The thermostatic master switch that controls the body's core temperature is located in the brain's hypothalamus. The hypothalamus can start a number of actions to reduce the temperature if it is too high.
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"Small waste molecules such as potassium, creatinine, and urea occur at a _____ concentration in the blood and at a _____ concentration in the dialysate.
Diffusion moves these waste molecules ___ the blood ____ the dialysate.
Choices:
From
Higher
To
Lower
Small waste molecules like potassium, creatinine, and urea are present in the blood in higher concentrations than they are in the dialysate.
What are molecules called?Commence with molecules. Any atoms joined by chemical bonds are referred to be molecules in general. The molecule is made up of any two atoms together. A molecule consisting of atoms from different elements is referred to as a compound. Even though all molecules are compounds, not all compounds are molecules.
What is molecules and its types?(1) The smallest particle in a chemical element or compound that possesses that element's and compound's chemical properties is called a molecule. Atoms are linked together by chemical bonds to form molecules. There are two categories of
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cell membranes are selectively permeable, meaning that only certain molecules or ions are able to pass through it via diffusion. True or False ?
True, the membrane which allows only certain substances to pass through, but does not allow others to pass through it is called a selectively permeable membrane
Semipermeable membrane is a kind of organic or synthetic, polymeric membrane with a purpose to allow certain molecules or ions to skip thru it by osmosis. The rate of passage depends on the pressure, concentration, and temperature of the molecules or solutes on both side, in addition to the permeability of the membrane to every solute. relying on the membrane and the solute, permeability may rely upon solute size, solubility, properties. How the membrane is constructed to be selective in its permeability will decide the charge and the permeability. Many natural and synthetic materials which are as an alternative thick are also semipermeable. One example of this is the thin film at the inside of the egg.
Schematic of semipermeable membrane all through hemodialysis, where blood is red, dialysing fluid is blue, and the membrane is yellow.
organic membranes are selectively permeable,[ with the passage of molecules managed by means of facilitated diffusion, passive transport or lively transport regulated by way of proteins embedded inside the membrane.
For example, the plasma membrane of eukaryotic cells.
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What is the source of genetic material?; What is the source of genetic variation in sexually reproducing organisms and in which stage does it happen?; What produces reproductive cells with half the genetic material of the parent organism?; What genes are inherited from father only?
In prophase I, chromosomes cross over; in metaphase I, chromosomes are randomly arranged; and in prophase II, gametes from different parents randomly fuse. These three processes are the principal causes of genetic variation resulting from sexual reproduction.
The source of genetic variation in sexually reproducing organisms Asexual reproduction only requires the presence of one parent, whereas sexual reproduction involves the production of gametes or sex cells by two parent organisms. The possibility of genetic VARIATION among the progeny is one benefit of sexual reproduction over asexual reproduction. However, CROSSING OVER, a process in meiosis, causes this genetic variation to happen during sexual reproduction. Sole sexually reproducing creatures undergo meiosis, the only division in which gametes are produced.Three separate processes—mutation, recombination, and gene immigration—are responsible for the genetic diversity. Evolution and genetic variety are propelled by mutation. Base substitutions (commonly known as point mutations), deletions, and insertions are the three different forms of DNA mutations.
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Part APredict which one of the five steps of the α -ketoglutarate dehydrogenase complex reaction is metabolically irreversible under physiological conditions.Predict which one of the five steps of the \alpha-ketoglutarate dehydrogenase complex reaction is metabolically irreversible under physiological conditions.Step 1. Decarboxylation.Step 2. Oxidation of 4-carbon group, reduction of lipoamide disulfide.Step 3. Transacylation.Step 4. Dihydrolipoyl dehydrogenase.Step 5. FADH2 enzymatically reoxidized by NAD+ to form NADH .
Step 1 of the decarboxylation process, as stated, occurs because the CO2 result dissolves off from the enzyme and does not significantly rebind.
What is a healthy metabolism?To put it another way, having a healthy metabolism implies that your body can react to food in a way that lowers your risk of diseases including fat, type 2 diabetes heart problems, stroke, renal disease, and non - alcohol fatty liver disease.
What is an example of metabolic?Both the synthesis and decomposition of glucose molecules are examples of biochemical activities. The term "metabolic pathway" refers to a network of linked chemical events that support one another. Through a sequence of intermediates, the route transforms one or maybe more start compounds into products.
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The complete question is-
Problem 13.12
Part A
Predict which one of the five steps of the α -ketoglutarate dehydrogenase complex reaction is metabolically irreversible under physiological conditions.
Step 1. Decarboxylation.
Step 2. Oxidation of 4-carbon group, reduction of lipoamide disulfide.
Step 3. Transacylation.
Step 4. Dihydrolipoyl dehydrogenase.
Step 5. FADH2 enzymatically reoxidized by NAD+ to form NADH .
Which of the following are directly associated with photosystem I?
a. receiving electrons from the photosystem II electron transport chain
b. generation of molecular oxygen
c. extraction of hydrogen electrons from the splitting of water
d. passing electrons to the cytochrome complex
A
Photosystem I directly receives electrons from the photosystem II electron transport chain.
An important membrane protein complex called photosystem I uses light energy to catalyze the movement of electrons from plastocyanin to ferredoxin across the thylakoid membrane. The moderate-energy hydrogen carrier NADPH is ultimately created using photosystem I transfer electrons. Each photosystem is made up of two interconnected parts: the antenna complex, which is composed of a large number of pigment molecules and collects photons, and the reaction center, which is made up of Chlorophyll a molecules embedded in a protein matrix. Plastocyanin (a peripheral membrane protein) transports electrons from photosystem II to photosystem I, where the absorption of additional photons again generates high-energy electrons.
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