Answer: A use for restriction enzymes is to cut and manipulate DNA. Restriction enzymes are biological molecules that are found in bacteria and are used to cut DNA at specific locations. They work by recognizing specific sequences of nucleotides (the building blocks of DNA) and cutting the DNA at those locations. This allows scientists to manipulate DNA in a very precise way, which is useful in many different applications.
One common use for restriction enzymes is in molecular biology research. Scientists use restriction enzymes to cut DNA from different organisms at specific locations, and then use the cut DNA to study the genetics of those organisms. This allows scientists to study the genetic makeup of different organisms and understand how they work.
Restriction enzymes are also used in genetic engineering, where scientists use them to cut and manipulate DNA in order to create new organisms or modify existing ones. The ability to cut DNA at specific locations allows scientists to insert, delete, or change specific genes in order to create organisms with new or improved characteristics.
In biotechnology, restriction enzymes are used in a variety of applications, such as DNA fingerprinting, DNA sequencing, and gene therapy. In these cases, restriction enzymes are used to cut and manipulate DNA in order to identify individuals or study the genetic makeup of specific diseases.
Overall, restriction enzymes have many important uses in the field of molecular biology and biotechnology because they allow scientists to manipulate DNA in a very precise way, which is useful in many different applications.
In fruit flies, red eyes (R) are dominant over purple eyes (r). Two red-eyed fruit flies were crossed, producing the following offspring:
76 red-eyed flies
24 purple-eyed flies
a. What is the approximate ratio of red-eyed to purple-eyed flies?
b. What two genotypes give rise to this ratio?
c. What are the genotypes of the parents?
d. What is the genotypic ratio of the F1?
e. What is the phenotypic ratio of the F1?
In fruit flies, red eyes (R) are dominant over purple eyes (r). Two red-eyed fruit flies were crossed, then the answers to the following question is given below.
a. Ratio of eye color: 76 red/ 24 purple = 3.2; This value can be approximated to 3 red:1 purple.
b. A cross between heterozygous parents Rr x Rr.
c. Where R R and R r both have red eyes and r r have purple eyes.
d. 1:2:1 (1 RR, 2 Rr, 1 rr) refer the above punnet square.
e. 3:1 (76 red : 24 purple)
In order for this ratio to occur, three of four progeny need to convey as a minimum one replica of the dominant R allele. However, for pink eyed flies to result, every determine need to additionally convey a recessive replica r of the gene. The presence of the R allele could provide the mother and father the pink eyes specified, however the presence of the recessive r allele in each mother and father could allow a few offspring to hold copies of the recessive r allele and broaden pink eyes. This is a monohybrid cross Heterozygous can only produce two different phenotypes, if both were homozygous as you said RR and rr all offspring would be red, while in question 76 are red and 24 purple.
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Hi! Can someone please help me and fill out the family tree genetics?
Instructions- 1. Pick a trait for each parent. If the trait is Heterozygous (one capital, one
lowercase) ten roll the dice to determine which one gets passed on, an odd number on the dice means the dominant allele is passed on, an even number means the recessive allele is passed on.
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Despite not being impacted, they must since they have affected children.They are both heterozygous because both have the disorder-causing allele.
How can you be certain that II 3 and II 4 have heterozygotes? Despite not being impacted, they must since they have affected children.They are both heterozygous because both have the disorder-causing allele.Due to the absence of dimples in unshaded individuals like I-1, they must have the homozygous recessive genotype dd.The chance of having sickle-celled offspring is exceedingly unlikely for someone with the AA genotype who can choose a life partner from almost any other genotype category.While the AA genotype has the highest compatibility and is also the most prone to malaria, some study demonstrates this.First filial generation (F1) is referred to as such, whereas second filial generation (F2) is that which results from crossing F1 generation.To learn more about heterozygous refer
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One of the major reasons that ion channels are used to propagate an action potential down an axon rather than to move the ions across the membrane with another type of transporter (such as a Na+/K+ antiporter) is________.
One of the major reasons that ion channels are used to propagate an action potential down an axon rather than to move the ions across the membrane with another type of transporter (such as a Na+/K+ antiporter) is because ion channels are much faster and more efficient at allowing ions to pass through the membrane.
Ion channels are able to open and close very quickly, allowing ions to flow through the membrane in a very short amount of time. This is much faster than a transporter, which would take much longer to move the ions across the membrane.
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Which type of junction type lets neighboring cells exchange small molecules? a.zonula adherens. b. desmosome. c.gap junction. d.tight junction.
The correct option is (C). the junction that let neighbouring cells exchange small molecules is Gap junction.
Gap junctions are collections of intercellular channels that allow ions and tiny molecules to move directly between cells. Gap junctions are found connecting nearly all cells in solid tissues and were first identified as low-resistance ion channels interconnecting excitable cells (nerve and muscle). Gap-junctional intercellular communication has been adapted to a range of roles with diverse regulation mechanisms according to their lengthy evolutionary history. Hexamers of the medium-sized families of integral proteins connexins in chordates and innexins in precordates make up the gap-junctional channels.
Gap junctions, which are made up of two unrelated protein families called pannexins and connexins, facilitate the movement of ions, second messengers, and tiny metabolites between adjacent cells. Connexin gene mutations result in a wide range of hereditary diseases, suggesting a crucial function in tissue homeostasis.
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Suppose Gene 1 produces a protein involved in the development of the eye. How can you prevent production of the Gene 1 protein in other parts of the body in the simulation? Identify two ways and include an explanation of what process each one of the prevention methods prevents.
Answer:
RNA Interference (RNAi): RNAi is a process that prevents the production of a specific protein by blocking the messenger RNA (mRNA) that would normally be translated into that protein. To prevent production of the Gene 1 protein in other parts of the body in a simulation, a synthetic RNA molecule complementary to the mRNA coding for the Gene 1 protein could be introduced. This RNA molecule would bind to the mRNA, preventing it from being translated into protein.
Cre-loxP Recombination: This is a technique used to selectively turn off genes in specific tissues or cells. A Cre recombinase enzyme is used to excise a portion of the DNA that codes for the Gene 1 protein. This results in the permanent inactivation of the gene and the corresponding protein will not be produced. To prevent production of Gene 1 protein in other parts of the body, the Cre recombinase could be introduced specifically into the cells where the Gene 1 protein is not desired. The Cre recombinase would then excise the Gene 1 protein from the DNA in those cells, preventing its production.
if an area was originally forested and then underwent urban development, which of the following shows the most likely effects on various parts of the water cycle in the area?
People living in urban communities have more fluctuated business potential open doors than people living in provincial regions.
Metropolitan living energizes strolling and cycling as opposed to driving. Third, climate well-disposed foundations and public administrations like channeled water, sterilization, and waste administration are a lot simpler and more conservative to develop, keep up with, and work in a metropolitan setting.
As urbanization advances, metropolitan land use changes, enlarging the area of impenetrable surfaces and, as an outcome, diminishing penetration during storm occasions and expanding direct spillover that in the long run modifies metropolitan hydrologic processes.
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how does image recognition affect mitosis?
The goal of mitosis image/sequence classification is to detect if a mitotic event occurs in the sequence.
What do you mean by mitosis?In cell biology, mitosis is a part of the cell cycle in which replicated chromosomes are separated into two new nuclei. Cell division by mitosis gives rise to genetically identical cells in which the total number of chromosomes is maintained. Therefore, mitosis is also known as equational division.
The process of mitosis generates new cells that are genetically identical to each other. Mitosis helps organisms grow in size and repair damaged tissue.
Mitosis is important for three main reasons: development and growth cell replacement and asexual reproduction.
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What is the resulting molecule called of a monoglyceride with an additional fatty acid?
The resulting molecule is called a diglyceride or a glyceryl diacylglycerol. Monoglycerides are fatty acid esters with one molecule of glycerol, while diglycerides are fatty acid esters with two molecules of glycerol.
What is diglyceride?Diglycerides are ester derivatives of glycerol that contain two fatty acids and one molecule of glycerol. They are also referred to as glyceryl diacylglycerols. They frequently occur in a variety of biological systems, including the cell membranes of animals, plants, and microbes, as well as in a number of food items, including margarine and baked goods, acting as emulsifiers.
Glycerol reacts with fatty acids like palmitic acid and stearic acid to create diglycerides. Glycerol acyltransferases often catalyze this reaction, which results in the creation of an ester bond between the carboxyl group of the fatty acid and the hydroxyl group of glycerol.
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A zomble apocalypse wipes out almost the entire human species before the zombie threat is eliminated. Only a group of 100 people who were at a family reunion on an uninhabited island survived. They returned to the mainland completely unaware of what had happened to everyone. Answer the following questions regarding the few survivors that now begin to rebuild the human population. A straggler with green eyes stumbles into the last remaining human outpost. The green eye trait did not exist in the outpost before her arrival, but it does now. What is the name of this mechanism of evolution? Bottleneck effect Founder effect Geneflow Genetic drift
The name of this mechanism of evolution is genetic drift. Genetic drift is a process in which random changes in the gene pool of a population occur over time due to random sampling of individuals.
In this case, the green eye trait is a rare mutation that was present in the straggler and has now been introduced to the gene pool of the outpost population due to random sampling.
Genetic drift is a process of evolution in which random changes in the gene pool of a population occur over time due to random sampling of individuals. This can lead to changes in allele frequencies and can be a powerful force of evolution, especially in small populations.
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which molecule is not a carbohydrate? view available hint(s)for part a which molecule is not a carbohydrate? cellulose starch lipid glycogen
The main difference between a carbohydrate and a lipid is that carbohydrates are water soluble and lipids are not water soluble.
Lipids have more energy storage capacity than carbohydrates, which is why the body stores energy it doesn't use as fat (lipids)
fats (in plants carbohydrates are stored as cellulose and lipids as oils) Lipids have less effect on osmotic pressure within a cell than complex carbohydrates.
Cellulose is a carbohydrate, as is starch. It is a type of structural polysaccharide, whereas starch is a type of storage polysaccharide.
A client is taking antithyroid medication. The nurse knows that this medication is taken for which of the following conditions? Select all that apply.
a. Hyperthyroidism
b. Hypercalcemia
c. Myasthenia gravis
d. Thyroid storm
e. Grave's disease
According to the antithyroid medication, the nurse knows that this medication is taken for The antithyroid medication is taken for Hyperthyroidism and Grave's disease. Correct answer: letter A and E.
Hyperthyroidism is a condition where the thyroid gland produces too much thyroid hormone, while Grave's disease is an autoimmune disorder that affects the thyroid gland. Myasthenia gravis is a neuromuscular disorder, while hypercalcemia is a disorder of calcium levels and thyroid storm is an extreme form of hyperthyroidism.
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McCaig and colleagues assessed bacterial diversity in pastures of Scotland in terms of their _______. They found that most groups of bacteria represented taxonomic groups that were _______.
A. microscopic structure; abundant
B. DNA sequencing; abundant
C. microscopic structure; rare
D. DNA sequencing; rare
microscopic structure; abundant. A collection of interdependent species populations that coexist in the same location.
Sorting by species enables organisms to divide themselves into regional habitats. - Habitats in places with a lot of species diversity are usually uniform. Gamma diversity will be large if alpha diversity is. Fewer trophic tiers are present in interaction webs. While food webs take into account primary producers, interaction webs do not. Food webs do not contain non-trophic interactions, whereas interaction webs do. Mutualism is a symbiotic connection in which one or more individuals gain from the other. Mutualism is regarded as either obligatory or facultative.
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Can u help me to match it for me?
The words about biodiversity and other matters are correctly matched in the attached image.
What is biodiversity?Biodiversity is a term that refers to the variety of living beings on earth and the relationship between them. This relationship is given thanks to the evolution and adaptation that has occurred between species. Also due to evolution there will be a genetic diversity that helps this relationship that occurs in the species with its environment.
Human needs depend immensely on biodiversity since it will provide the raw materials for their survival. For this reason, we must conserve and preserve the ecosystems in which we inhabit in order to obtain services for human development.
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What are standing waters & give two examples.
Standing is another name for stagnant water, which is defined as water that is not moving in a stream or river.
Examples of standing waterWastewaterRemains of rainfalLeft over of floodIt is a still body of water, typically one with a foul odor and unfit for drinking. In stagnant water, mosquitoes can reproduce. If a building, excavation, rut, or depression can contain stagnant water for more than four days in a row, the water is considered to be "Standing Water" and are naturally or artificially impounded water which, because of its poor quality or shallow depth, is unusable for livestock or wildlife.
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the term atresia describes the congenital absence of a normal body opening or the failure of a structure to be tubular.
True, the absence of a regular bodily opening is referred to as atresia.
Atresia is the term used to describe a congenitally absent or closed aperture or tubular structure in the body.
Imperforation and atresia birth defect causing the closure or lack of a typical opening valve or lumen. Congenital absence, closure, or constriction of the large intestine, rectum, or anus is referred to as atresia or stenosis commonly known as imperforate anus.
Atresia is the medical term for the congenital absence of a typical bodily opening or for a structure that is not tubular. All of the body's internal and external surfaces have protective coverings made of these tissues, which also function as glands. The pituitary gland's glandular front lobe is called the adenohypophysis.
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A dog with short hair(ahh) is crossed with another dog with short hair(HH). What percent of the offspring will have long hair? A- 50% B-0% C-100%
If a dog with short hair (hh) is crossed with another dog with long hair (HH), the percent of the offspring that will have long hair is 100% (option C).
What is a punnet square?A punnet square is a graphical representation used to determine the probability of an offspring expressing a particular genotype.
According to this question, a gene coding for hair is involved. The allele H codes for long hair while allele h codes for short hair.
If a dog with short hair (hh) is crossed with another dog with long hair (HH), all of the offsprings will have a genotype Hh (heterozygous). This means that all the offsprings will have a long hair.
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What evolutionary advantage do the stress responses you observed in this exercise provide?
How does this exercise demonstrate the "fight or flight" response?
The stress responses observed in the exercise can provide an evolutionary advantage by allowing individuals to quickly respond to threats in their environment and increase their chances of survival.
What are the types of body responses?These responses, known as the "fight or flight" response, activate the body's sympathetic nervous system and prepare it to either fight against the threat or flee from it. This can include physical changes such as increased heart rate, increased breathing rate, and heightened alertness.
The "fight or flight" response is a survival mechanism that has been passed down through evolution and is still present in modern humans today. The exercise demonstrates the "fight or flight" response by simulating a stressful situation and observing the physiological changes that occur in response to the stressor.
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Identify the innovations Native Americans lacked that limited the development of agriculture to certain regions
Correct Answers:
#1: wheeled vehicles
#2: Domesticated animals
Incorrect Answers:
#1: trade networks
#2: irrigation systems
Native Americans did not have access to wheeled vehicles or domesticated animals, which limited their ability to develop agriculture in certain regions.
Trade networks and irrigation systems, while important for agriculture, were not necessary components for establishing agricultural practices.
Native Americans are the indigenous people of North America. They have a long and complex history, dating back thousands of years. Native Americans have faced many challenges throughout their history, including displacement, discrimination, and poverty. They have also faced the loss of their traditional lands and cultures. Despite these struggles, Native Americans have continued to maintain their distinct identities and cultures, and are working to preserve them in the face of continued challenges.
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what step in the adj framework would the following problem-solving activity fall into? analyze a completed method to determine if it meets the performance requirements set by the customer.
Define the problem, generate alternative solutions, Evaluate and select an alternative, implement and follow up on the solution in order to follow up the problem-solving process.
Diagnose the circumstance to keep your attention on the issue and not merely its symptoms. Use cause-and-effect diagrams to establish and examine root causes, and flowcharts to show the anticipated steps of a process while solving problems. Leaders may be asked to "sell" the solution, guide others to do so, or assist in its implementation with the aid of others.
The ADJ framework is made up of three components: a three-step problem-solving procedure, a type of assessment issue, and learning outcomes that represent problem-solving abilities. Leadership must mentor staff members and cultivate problem-solving skills in order to successfully manage and operate an organization. The fundamental four-step problem-solving technique can be used to solve problems and find appropriate solutions.
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How do I get the correct answer to this question? (Not graded))
The concept of evolution through herbal selection is guided by the fossil report, genetics, and examples of nearby variations, and the elements beneath investigate how fossil data influences the concept of evolution via natural selection.
What are the importance of fossils?Fossils are examples of evidence used to describe prehistoric events.Darwin used the fossil record to demonstrate evolution. Darwin demonstrated, in particular, that different species emerged at different points in geologic time as the traits of pre-existing species gradually changed. He contended that "descent with modification" occurs as a result of natural selection.The fossil report demonstrates the evolution of organism complexity over time.The report on fossils. For example, the fossil record is consistent in terms of biogeography, and if evolution is true, we'd expect the fossil record to be consistent with modern biogeography, the phylogenetic tree, and historical geography information recommended by plate tectonics.Converging Evidence and Fossils. The fact that the fossil record, in general, shows evolution is an important piece of evidence, but it becomes even more telling when combined with other evidence for evolution.To learn more about fossils refer to :
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Which of the following physiological changes is a result of catabolic chemical reactions?
A)Bone growth as a result of hormonal stimulation during puberty
B)Muscle mass enlargement as a result of lifting weights
C)Weight loss as a result of starvation
D)Weight gain as a result of overeating
The physiological changes are a result of catabolic chemical reactions is weight loss as a result of starvation.
Thus, the correct option is C.
Metаbolic processes аre constаntly tаking plаce in the body. Metаbolism is the sum of аll of the chemicаl reаctions thаt аre involved in cаtаbolism аnd аnаbolism. The reаctions governing the breаkdown of food to obtаin energy аre cаlled cаtаbolic reаctions. Conversely, аnаbolic reаctions use the energy produced by cаtаbolic reаctions to synthesize lаrger molecules from smаller ones, such аs when the body forms proteins by stringing together аmino аcids. Both sets of reаctions аre criticаl to mаintаining life.
Stаrvаtion response in аnimаls (including humаns) is а set of аdаptive biochemicаl аnd physiologicаl chаnges, triggered by lаck of food or extreme weight loss, in which the body seeks to conserve energy by reducing the аmount of cаlories it burns.
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in horses, black color (b) dominates chestnut color (b). the trotting gait (t) dominates the pacing gait (t). a cross is made between a horse homozygous for black color and the pacing gait, and a horse homozygous for chestnut color and the trotting gait. list the probable genotype and phenotype of offspring in the f2 generation.
100% BBtt x bbTT = BbTt. Black color (B) and practising gait (t) horse has a genotype BBtt. Chestnut color (b) and trotting gait (T) horse has a genotype bbTT. Crossing BBtt x bbTT.
The impact of chance on the inheritance of traits is a significant aspect in genetics. Which genes are transferred from each parent to their offspring is solely a matter of chance. Mendel's Laws—the Law of Segregation and the Law of Independent Assortment—explain how chance affects genetic diversity. The two alleles for each gene segregate when gametes are created, according to the Law of Segregation, and each gamete receives one allele. According to the Law of Independent Assortment, qualities on various chromosomes will be inherited independently of one another.
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match the words with their definition. 1 . pigment produced when objects reflect light 2 . white absorbs all colors of light 3 . reflect produced when blue and yellow pigments are mixed 4 . black to soak up or take in 5 . green primary colors of light 6 . red, yellow, blue to turn back or throw back 7 . red, green, blue a coloring matter 8 . yellow produced when red and green lights are mixed 9 . absorb reflects all colors of light 10 . color primary pigment colors
Pigment produced when objects reflect light: Color
White absorbs all colors of light: Absorb
Reflect produced when blue and yellow pigments are mixed: Green
Black to soak up or take in: Absorb
Green primary colors of light: Red, green, blue
Red, yellow, blue to turn back or throw back: Reflect
Red, green, blue a coloring matter: Pigment
Yellow produced when red and green lights are mixed: Yellow
Absorbs reflects all colors of light: White
Color primary pigment colors: Red, yellow, blue
What is Pigment ?A pigment is a substance that provides color to a material by selectively absorbing and reflecting certain wavelengths of light. In the context of color, pigments are often used in paints, inks, dyes, and other coloring materials to produce a desired hue. They are composed of small, insoluble particles that are suspended in a medium and can be applied to surfaces or incorporated into materials to produce color. Pigments can be made from a wide range of natural and synthetic materials, and their properties, such as color, lightfastness, and durability, can vary widely depending on the type of pigment and the method of application.
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The DRIs represent a set of research-based intake recommendations for specific nutrients. These guidelines aim to help individuals maintain good health, prevent chronic disease, and avoid excesses of nutrients that may cause health problems.
Choose the correct statements about DRIs.
Select all that apply.
A. An AI may be determined if there is not enough information to establish an RDA.
B. If an individual consumes a little more than the UL for a particular nutrient during one day, toxicity symptoms will probably occur.
C. The EAR is a good goal to strive for when considering which foods to eat every day.
D. All micronutrients have an AMDR.
E. An individual’s EER takes into account height, weight, and activity level.
The correct statements about DRIs are:
An AI may be determined if there is not enough information to establish an RDA.The EAR is a good goal to strive for when considering which foods to eat every day.All micronutrients have an AMDR.Correct answer: letter A, C and D.
Statement B is not correct, as an individual would have to consume much more than the UL for a particular nutrient for toxicity symptoms to occur. Statement E is also not correct, as the EER is an estimate of an individual's energy needs and does not take into account height, weight, or activity level.
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Systems can be:
Combination of biotic and abiotic factors (ex: Oceans)
Manufactured ex: [ANSWER]
Physical bodies ex: [ANSWER]
Life forms ex: [ANSWER]
Processes ex: [ANSWER]
Not a system: ex: [ANSWER]
The ecosystem is a combination of biotic and abiotic factors created by a man-made environment, physiologic bodies are planetary bodies, life forms are biomes, and processes are ecological cycles and the organism is not an system.
What is the significance of the ecological cycles?Ecological cycles are the cyclic movements of the matters and energies that are taking place in the environment, such as the water cycle, the nitrogen cycle, the phosphorus cycle, the carbon cycle, etc.
As a result, an ecosystem is a combination of biotic and abiotic factors created by a man-made environment, physiologic bodies are planetary bodies, life forms are biomes, and processes are ecological cycles.
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during meioses crossing over usually results in
Answer: During crossing over, part of one chromosome is exchanged with another. The result is a hybrid chromosome with a unique pattern of genetic material. Gametes gain the ability to be genetically different from their neighboring gametes after crossing over occurs.
Explanation:
samantha is diagnosed with a genetic disorder. she suffers from a glandular dysfunction that hinders mucus production. she has difficulty in breathing, and her digestion is hampered. she also has frequent lung infections and suffers from shortness of breath. in this scenario, which of the following genetic disorders is samantha most likely suffering from?
Answer:
Samantha is most likely suffering from cystic fibrosis.
When counting colonies on an agar plate, it is generally assumed that each colony resulted from one, original cell. true
The given statement "when counting colonies on an agar plate, generally it is assumed that each colony resulted from one original cell " is true because this assumption is based on the idea that each colony on an agar plate originates from a single, isolated bacterial cell that has undergone division and multiplied into a visible mass of cells.
It is true because it is a widely accepted assumption in microbiology that each colony on an agar plate originates from a single, isolated bacterial cell. This is due to the following reasons:
The isolation of bacterial cells on an agar plate allows for individual cells to grow into separate colonies.The conditions on the agar plate (such as temperature, nutrients, and atmosphere) encourage cell growth and division, resulting in the visible formation of colonies.The physical separation of colonies allows for accurate counting and quantification of bacterial populations.These reasons support the assumption that each colony on an agar plate results from a single, original cell.
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2 example of structure‐function complementarity in the human body
Answer:
Complementarity of Structure and function:-- For example
Bones can support and protect body organs because they contain hard mineral deposits. Chemical Level: -At this level atoms, tiny building blocks of matter, combine to form molecules such as water and proteins.hope it helps<3What are humans three main sources of ATP?
The three main sources of ATP in human cells include proteins, lipids and carb biomolecules.
What are proteins, lipids and carb biomolecules?Proteins, lipids, and carbs are biomolecules that are used by the body to synthesize ATP through different processes such as for example cellular respiration and glycolytic fermentation pathways, which si less efficient in terms of energy generated by the same amount of biomolecules.
Therefore, with this data, we can see that proteins, lipids and carb biomolecules are used to generate ATP, being carbohydrates the main source for such a purpose in the cell.
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