The primary structure of a protein the sequence of the amino acids in the protein.
The correct option is B.
What are amino acid?Proteins are composed of molecules called amino acids. Proteins and amino acids are the elements of life. Amino acids are the byproducts of the digestion or degradation of proteins. Amino acids are being used by the body to create proteins that aid in the digesting of meals.
What makes amino acids so important?Body protein as well as other vital nitrogen-containing substances including creatine, peptidases, and some neurotransmitters cannot be formed without amino acids. Although limits are expressed in terms of protein, amino acids are a biological necessity.
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a species of fly has two alleles for the length of their legs. the allele for long legs is dominant , is represented by p. the allele for short legs is recessive and is represented by q. if 12 of 100 organisms have short legs, what is p?
Based on the Hardy-Weinberg principle, if we have 12 of 100 organisms that have short legs, then q²: 0.12, the q allele is equal to 0.35 and therefore the p allele is equal to 0.65.
What is the Hardy-Weinberg principle?The Hardy-Weinberg principle is a statement used in population genetics to estimate the allele frequencies in a population under certain conditions. This principle state the sum of alleles (in this case p and q) is equal to one.
Therefore, with this information, we can conclude that the Hardy-Weinberg principle indicates that the frequency of q is equal to 0.35 and therefore the p allele is equal to 0.65.
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Which of the following is least associated with tonsils? A. Lymphoid Tissue. B. Palatine, pharyngeal, and lingual. C. Thrombopoiesis. D. Lymph node-like
The process of making platelets, which are anucleate, small (2 to 4 m). They're round to ovoid cells found in blood arteries, is referred to as thrombopoiesis.
The process through which thrombocytes are produced is known as thrombopoiesis. Cells called thrombocytes are crucial for blood clotting. Thrombocytes are also referred to as platelets in mammals. Although they also take part in secondary hemostasis (coagulation) and inflammatory pathways, platelets play a key role in primary hemostasis. The main factor controlling thrombopoiesis is thrombopoietin (Tpo). Tpo is continuously produced by the liver and renal tubular epithelial cells, and it is then excreted and eliminated by platelets and their forerunners during thrombopoiesis. As a result, the relationship between platelet and platelet precursor mass and plasma Tpo concentration is inverse.
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slow oxidative muscle fibers are best suited for . slow oxidative muscle fibers are best suited for . hitting a baseball running a marathon running a 100-yard dash lifting heavy weights at the gym
Slow oxidative muscle fibers are best suited for running a marathon. Option C.
The ability of slowly oxidizing fibers to function for extended periods of time without fatigue helps maintain posture generate isometric contractions, and stabilize bones and joints. Slow-oxidizing fibers are ideal for long-term energy expenditure and repetitive muscle contractions. These fibers are ideal for long-distance runners such as cross-country athletes.
It has many mitochondria and its main energy source is aerobic metabolism. It is the most fatigue-resistant and efficient fiber type. Slow-oxidizing fibers contract relatively slowly and use aerobic respiration oxygen and glucose to generate ATP. Fast oxidation fibers contract faster and primarily use aerobic respiration, but can switch to anaerobic respiration glycolysis and thus tire faster than SO fibers.
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what is the expected result of a ""nonsense"" point mutation?
The expected result of a nonsense mutation, also known as a stop mutation, is a change in DNA that causes the translation of a protein to halt sooner than expected. This is a common form of mutation that results in the expression of a shortened or nonfunctional protein in humans and other animals.
A nonsense mutation is a point mutation in a DNA sequence that results in a premature stop codon or nonsense codon in the transcribed mRNA, as well as a shortened, incomplete, and usually nonfunctional protein product.
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reggie is now in his mid-50s, so he can expect to experience a: gradual increase in sperm count. gradual decrease in testosterone. gradual increase in the speed of erection and ejaculation. cessation in fertility.
He will now experience a gradual decrease in testosterone.
A hormone principally generated in the testicles is testosterone. Men's: Bone density is maintained by testosterone. dispersion of fat. muscle mass and strength. Normal peak times for this sex hormone are in adolescence and early adulthood. Around the age of 40, men's ability to make testosterone starts to wane, causing testosterone levels to drop 1 to 3 percent year.
Men's serum levels of testosterone decline with age. Although this reduction is slow and of a minor degree, it has been hypothesized that it is the origin of these aging changes because many of them resemble those of hypogonadism brought on by established diseases.
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what property prevents the ligands of cell-surface receptors from entering the cell?
The property that prevents the ligands of cell-surface receptors from entering the cell is The molecules are hydrophilic and cannot penetrate the hydrophobic interior of the plasma membrane.
What is a Lingand?
A ligand is said to be an ion or molecule, that donates a pair of electrons to the central metal atom or ion thereby leading to the formation of a coordination complex. The word ligand is from Latin, which means “tie or bind”. Ligands can be anions, cations, and neutral molecules.
Here's the complete question:
What property prevents the ligands of cell- surface receptors from entering the cell?
a. The molecules bind to the extracellular domain.
b. The molecules are hydrophilic and cannot penetrate the hydrophobic interior of the plasma membrane.
c. The molecules are attached to transport proteins that deliver them through the bloodstream to target cells.
d. The ligands are able to penetrate the membrane and directly influence gene expression upon receptor binding.
All of the reactions of cellular respiration that occur after glycolysis take place in what part of the eukaryotic cell?.
Which type of human body cell has the highest concentration of mitochondria? Why?
Answer: According to my search
Your heart muscle cells – with about 5,000 mitochondria per cell.
Explanation:
These cells need more energy, so they contain more mitochondria than any other organ in the body.
hope it's helpful!
What causes the formation of acetone, which eventually leaves the body through the lungs, causing breath with a fruity smell?.
The formation of acetone which eventually leaves the body through the lungs causes breath with a fruity smell is ketosis.
Ketone bodies are formed in liver cells through the breakdown of fatty acids. They are released into the blood after the glycogen stores in the liver are depleted. Oxygen and glucose are used by cells to produce the energy-rich ATP molecules needed to maintain cellular metabolism. This process is called cellular respiration. The lack of mitochondria means the cells don't use the oxygen they carry.
It produces the energy carrier ATP through fermentation glycolysis of glucose and lactate production. When glycolysis is blocked red blood cells lose their membrane potential and eventually die. Mature mammalian red blood cells are incapable of aerobic respiration, the process by which organisms convert energy in the presence of oxygen, and glycolysis is the sole source of ATP.
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PLEASE HELP ASAP.
Rabbits are very popular domesticated animals, so popular that there are over 300 breeds of domesticated rabbits in the world. You attend a rabbit show and notice that all of the breeds vary in many characteristics, such as size, color, and fur length. You notice that there is weight information on the cages of all rabbit individuals at the show and decide to jot down data for two specific rabbit breeds (in pounds):
Breed A: 10, 8, 7, 10, 9, 9, 10, 9
Breed B: 10, 12, 14, 13, 10, 15, 11, 12
In three to five sentences, 1) calculate the average weights of the two rabbit breed groups, 2) describe some factors that could contribute to the different weights seen within breeds, and 3) describe how you would track and find the growth rate of the two rabbit breeds during an investigation.
Answer:
Average of breed a: 9 pounds, average of breed b: 12.125
Explanation:
10+8+7+10+9+9+10+9 = 72
72/8 = 9 pounds
10+12+14+13+10+15+11+12 = 97
97/8 = 12.125 pounds
HELP
Lactose Intolerance Data Analysis
Lactose is the type of sugar found in milk. Lactase is a protein, an enzyme produced by the small intestine. It breaks down lactose. Individuals who have lactose intolerance do not produce enough lactase.
People with adequate amounts of lactase can break down Lactose into glucose and galactose (a type of sugar) which are then absorbed into the bloodstream
Answer:
what do you need help with?
Explanation:
a box starting from rest slides down an inclined plane and reaches a speed of 27 m/s in 3 seconds what is the acceleration of the box
The acceleration of this box is equal to 9 m/s².
What is an acceleration?An acceleration refers to the rate of change of the velocity of an object with respect to time.
How to calculate the acceleration of this box?Mathematically, the acceleration of this box can be calculated by using this formula:
a = (V - U)/t
Where:
V represents the final velocity.U represents the initial velocity.t represents the time measured in seconds.a represents the acceleration.Note: The initial velocity is equal to zero (0) since the box starts from rest.
Substituting the given parameters into the formula, we have;
a = (27 - 0)/3
a = 27/3
Acceleration, a = 9 m/s²
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a soil can include particles ranging in size from very fine clay to coarse sand. Why is neither of these soils ideal for plant growth including agriculture
true/false: fish have slow metabolisms and do not need efficient gas exchange. group of answer choices true false
Fish have slow metabolisms and do not need efficient gas exchange This statement is false because Obtaining oxygen from air is easier than from water in many ways.
What happens when metabolism is high?You will consume more calories both at rest and when you are active if your metabolism is "strong" (or fast). You'll need to consume more calories to sustain your weight if you have a high metabolism. One theory for why some persons can eat more food than others without weight gain is because of this.
How does metabolism operate?The process through which the body converts food and liquids into energy is called metabolism. To create that energy your body requires, calories from food and beverages combine with oxygen throughout this process. A body requires energy for all its functions, even when at rest.
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Which statement about statistical analysis in science is true?
a. Statistical methods are applied to data to prove that the null hypothesis is correct.
b. Statistical tests can be used to evaluate results from controlled experiments but not comparative experiments
c. Scientists use statistics to prove their conclusions are true.
d. Statistics are used to measure the probability that an observed difference is due to chance.
According to the third choice in the question, statistics are used in science. A person's conclusions must be supported statistically in order for them to be taken as reliable.
Aspiring scientists can use such conclusive data for their future efforts. Thus, one employs statistics to support his assertions, and option three is supported. the art or science of gathering and examining enormous amounts of numerical data, particularly with the aim of extrapolating proportions in the whole from those in a representative sample.
Science is a disciplined endeavor that develops and arranges knowledge into universe-related explanations and predictions that can be put to the test. Statistics inquiry may be as old as the human race, and some of the earliest archaeological evidence for it can be found.
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Sort the phrases into the appropriate bins depending on whether they are true only for channels, true only for carrier proteins, or true for both channels and carriers.
a. provide a hydrophilic path across the membrane
b. provide a continuous path across the membrane
c. are integral membrane proteins
d. transport solutes down a concentration or electrochemical gradient
e. allow water molecules and small ions to flow quickly across the membrane
f. transport primarily small polar organic molecules
g. undergo a change in shape to transport solutes across the membrane
1. only channels
2. only carriers
3. both channels and carriers
Only for Channels: provide a continuous path across the membrane; allow water molecules and small ions. (B, E)
Only for Carrier proteins: transport primarily small polar organic molecules; undergo a change in shape to transport solutes across the membrane. (F, G)
Both for Channels and Carriers: are integral membrane proteins; transport solutes down a concentration or electrochemical gradient; provide a hydrophilic path across the membrane. (C, D, A)
What are carriers and channel protein?
Carrier proteins are said to proteins that stick to molecules or ions on one side of the membrane and release them on the other. Channel proteins on the other hand, do the opposite, they create pores that penetrate the membrane, thereby allowing target molecules or ions to flow through via diffusion without interfering with one another.
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Enzyme-mediated chemical reactions take place when the substrate molecules bind to the of an enzyme.
Enzyme-mediated chemical reactions take place when the substrate molecules bind to the active site of an enzyme.
What is enzyme substrate complex?The first step in the process of enzyme catalysis is the enzyme's binding to its substrate, which results in the formation of an enzyme-substrate complex. The active site is a particular area of the enzyme that the substrate binds to in order to make it active. The substrate is changed into the product of the reaction while it is still connected to the active site of the enzyme. After this transformation, the product is subsequently released from the enzyme.
This active site is made up of residues that establish temporary bonds with the substrate, and those residues are also the ones that catalyze a reaction that the substrate is responsible for.
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double-stranded dna was isolated from a cryophilic bacterium. which choice is most likely to represent a possible composition of its bases?
Double-stranded DNA was isolated from a cryophilic bacterium. the choice is most likely to represent a possible composition of its base) adenosine.
Psychrophilic microorganisms include Gram-negative genera together with Pseudoalteromonas, Moraxella, Psychrobacter, Flavobacterium, Polaromonas, Psychroflexus, Polaribacter, Moritella, Vibrio, and Pseudomonas; Gram-advantageous genera which include Arthrobacter, Bacillus, Micrococcus species; microalgae which includes Chlamydomonadales and ...
Psychrophiles are extremophilic microorganisms or archaea that are bloodless-loving having the most appropriate temperature for a boom at approximately 15°C or lower, a maximal temperature for an increase at about 20°C, and a minimum temperature for an increase at zero°C or decrease.
Psychrophilic microorganisms have effectively colonized all completely cold environments from the deep sea to mountain and polar regions. a number of those organisms, relying on their most useful increase temperature, are also acknowledged by using the phrases psychrotolerant or psychrotroph.
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Monozygotic twins occur when a fertilized egg undergoes mitosis, and the two cells that result become separated and develop independently. What is the genetic relationship between the two offspring?.
Genetically speaking, the two offspring are identical. They thrive from a single fertilized egg that divides in two.
What does the term "monozygotic twins" mean?
Monozygotic twins are produced when a single egg is fertilized by a single sperm in the fallopian tube, resulting in the fertilized egg dividing into two. These twins have the same sex chromosome and the same genome.
A fertilized egg may split within a few days of conception, producing genetically identical twins. These twins are known as monozygotic because they are descended from a single zygote. Identical twins are of the same gender.
Therefore, Genetically the monozygotic twins are the same.
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What is least characteristic of the pharyngeal tonsils?
The least characteristic of pharyngeal tonsils is the tonsils that are most commonly removed by tonsillectomy.
The entry of the nasal cavity into the pharynx is where the pharyngeal tonsils are located. Adenoids are the name for these tonsils, which can block breathing when they expand. The palatine tonsils are located close to the pharyngeal opening where the oral cavity enters.
The respiratory epithelium lines the pharyngeal tonsil but stratified squamous epithelium lines the lingual tonsil and is placed near other structures within the tongue (e.g., salivary glands), which helps to identify it from the palatine tonsils.
The pharyngeal tonsils are also known as adenoids and they guard against infections and cleanse out harmful particles.
Colds, throat irritation, and sore throats can still occur after tonsillectomy. However, one will not acquire tonsillitis (enlarged pharyngeal tonsils) until the tonsils regenerate, which is unlikely. Despite the fact that the tonsils are a component of the immune system, eliminating them has no effect on the body's capacity to fight infections.
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before a cell undergoes mitosis and cytokinesis (i.e., reproduces to make two cells), the uncoiled chromatin in the nucleus as well as the organelles, like the centrioles in the cytoplasm, are duplicated/replicated. when does this occur in the cell cycle?
The appropriate matches occur during interphase: the DNA replicates during mitosis, the nucleus divides during cytokinesis, and the cytoplasm divides.
What a cell cycle is made out of?The interphase, which corresponds to the time between the end of one division and the start of the next, is the cycle's longest phase. It consists of the G1 phase, the S phase (DNA replication), and the G2 phase.
B. Phase M: Mitosis and Meiosis: Cell division (nucleus and cytoplasm) occurs during these phases.
Which three phases make up the cell cycle?A eukaryotic cell's cell cycle is divided into three phases: interphase, mitosis, and cytokinesis. Interphase is the name of the initial phase of the cell cycle. In the interphase, the cell multiplies and divides.
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Standard NCES.7.L.1.2- An athlete is running a race. The athlete’s body needs energy. Which type of organelle in the athlete’s cells supplies the energy for cellular function?
Group of answer choices
Golgi apparatus
mitochondrion
ribosome
nucleus
Answer:
Mitochondrion
Explanation:
Mitochondria are the cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions and so they are the cell organelles in the athlete’s cells that supply the energy for cellular function.
the rated capacity of an renewable energy system (wind turbine, solar panel, etc) is
A power production facility's rated capacity is the amount of energy an energy installation will generate in optimal operating conditions.
The capacity of a plant or machine is its rated capacity. This capacity demonstrates the plant's maximum production power, but it cannot be achieved due to a lack of time and time spent resting or rehydrating. As a result, it only has theoretical capacity. Sometimes it's referred to as load capacity.
A plant's (wind turbine, solar panel, etc) capacity factor is the ratio of the amount of energy it produces to its maximum output. It is typically expressed as a percentage by dividing the total energy produced over a given time period by the energy the plant would have produced if it had operated at full capacity.
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Biology help :)
(a) Which phase of mitosis would you think that Taxol would affect the most?
(b) Why do you think it affects that phase the most?
(c) What are some possible problems that a person taking Taxol might have?
(d) What would be happening to the normal cells trying to perform mitosis if a person is taking Taxol? (Hint: Remember that normal cells undergo mitosis too!)
The taxol concentration that reduced interphase cell dynamics also inhibited cell proliferation and stopped mitosis by blocking the transition from metaphase to anaphase.
What is the effect of taxol in mitosis?Taxol interferes with the creation of the normal mitotic spindle and stops cell growth in the M phase of the cell cycle, it prevents the replication of cells.
Taxol is an anti-mitotic drug that binds to microtubules and stabilizes them against depolymerization.
Therefore, taxol inhibit the process of mitosis.
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what is the purpose of DNA replication and why is it important that dna replito. it's before mitosis
Answer:
Mitosis is where the cell divides itself into two identical parts.
In order for the two cells to be identical, they need to have the same parts, which is where replication is important
If the cell didn't replicate its organelles, it would not be able to split itself since nothing would go into one of the halves
Replication is the duplication of those organelles so that the sister cells are the same, so making a copy of the nucleus and other organelles allows one of those parts to stay and one part to go into the new cell
Explanation:
Standard NCES.7.L.2.1-Which term describes budding, fission, and regeneration?
Group of answer choices
asexual reproduction
sexual reproduction
mutations
cell cycles
Asexual reproduction describes budding, fission, and regeneration.
Budding, fission, and regeneration are types of asexual reproduction seen in lower organisms like bacteria, fungi, and algae. Asexual reproduction results in the production of clones or daughter cells that are identical to each other and the parent cell. Budding is specifically found in yeast. Fission is found in bacteria. While regeneration is found in animals like planaria and hydra.
What is the specialty of Asexual reproduction?
Asexual reproduction refers to a type of reproduction where a child is born to a single parent. The newly created people are clones of their parents since they have the same genetic makeup and physical characteristics. Both multicellular and unicellular species can reproduce asexually.
Therefore, budding, fission, and regeneration are described by Asexual reproduction.
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If a man with classic hemophilia (x-linked recessive) has children with a woman who is a carrier for the disorder, what is the expected risk pattern?
If a man with classic hemophilia (x-linked recessive) has children with a woman who is a carrier for the disorder, the expected risk pattern is 50% .
Recessive inheritance is evident in the majority of X-chromosome diseases. Males are more likely than females to get these disorders because they only have one copy of the X chromosome. Each boy born to a female who has an X-linked recessive trait has a 50% chance of inheriting the trait, but no daughters of this mother would be anticipated to be afflicted (each daughter has a 50% chance of being a carrier). Having received their father's Y chromosome, the sons would not be affected (there is therefore no male-to-male transmission), whereas an affected father passes the mutation to all of his carriers daughters.
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1. What are the major classes of biological macromolecules? Select all that apply.
a. Organelles
b. Acids
c. Lipids
d. Ribosomes
e. Nucleic acids
f. Carbohydrates
g. Proteins
h. Chlorophylls
Explanation:
Lipids, Nucleic Acids, Carbohydrates, Proteins.
Please help me!!!!!!!!!
The right occipital lobe receives visual information from the?
a. entire retina of the left eye
b. entire retina of the right eye
c. left half of both retinas
d. entire retina of both eyes
e. right half of both retinas
Why?
option B is correct. The calcarine sulcus is located on the medial part of the occipital lobe and is surrounded by the visual cortex, also called as V1 or Brodmann area 17. Through the thalamus, it gets visual data from the retina.
The part of the brain that processes vision is called the occipital lobe. It is linked to memory formation, object and face identification, color perception, distance and depth perception, and visuospatial processing. The calcarine sulcus is located on the medial part of the occipital lobe and is surrounded by the primary visual cortex, also known as V1 or Brodmann area 17.
Through the thalamus, it gets visual information from the retina. The secondary visual cortex, also referred to as Brodmann areas 18 and 19, V2, V3, V4, and V5, surrounds and receives information from the primary visual cortex.
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