a transcription factor contains an amphipathic helix that is essential for the factor's function (allowing it form a dimer). which of the following mutations resulting in amino acid changes would most likely disrupt its function?
Answers
Because valine is an essential amino acid that the body cannot generate on its own, it is converted from valine to methionine. Methionine must be present in appropriate amounts in the diet.
An amino acid is defined as:Amino and carboxylic acid functional groups can both be found in organic compounds known as amino acids. Alpha-amino acids, which are the building blocks of proteins and are among the hundreds of distinct amino acids found in nature, are by far the most widespread. There are just 22 alpha amino acids in the genetic code.
What four tasks do amino acids perform?Protein building components. Despite both D- and non-L-amino acids being present in nature, only L-amino acids can be polymerized to form proteins.Biological barriers.Storage of nitrogen.Creation of different compounds.To know more about Amino Acids visit:
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Related Questions
What energy using-process helps to cool the body
Answers
Answer:
Convection
Explanation:
convection is the process of losing heat through the movement of air or water molecules
What formed the mountains on the California coast?
A.divergent zones
B.oceanic-continental convergence
C.continental-continental convergence
D.oceanic-oceanic convergence
Answers
What formed the mountains on the California coast is continental-continental convergence
What is continental-continental convergence?Continental-continental convergence is a type of plate tectonic boundary where two continents collide and move towards each other. When two continents collide, their lithospheric plates become deformed and thickened, leading to the formation of large geological structures such as mountain ranges, plateaus, and uplifted regions.
At a continental-continental convergence boundary, the plates are not subducted into the mantle, as happens at oceanic-continental convergences, but instead they collide and overlap, causing the buildup of vast amounts of rock and sediment. Over time, the pressure and heat generated by the collision cause the rocks to be deformed and metamorphosed, leading to the formation of new minerals and rocks with unique properties.
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Suppose a cell has just divided, what would it do next?
A. Divid cell
B. Synthesize new DNA
C. Carry out most cell growth
D. Prepare to divide
Answers
Answer:
B
Explanation:
if a cell has divided a new cell would be made example a single cell can divide and it'll make two cells and four cells and so on... hopes that helps
If a cell has just divided, the next action that will cell perform is that carries out its growth. Thus, the correct option for this question is C.
What is a Cell?A cell may be defined as a basic structural and functional unit of living organisms. Each and every living organism are made up of cells. The first living cell was discovered by Antony Von Leeuwenhoek in 1674.
According to the context of this question, if a cell completes or terminates its division process, it is required for the cell to grow and perform its metabolic activities which are necessary for it and the body of living organisms as well.
Therefore, if a cell has just divided, the next action that the will cell perform is that carries out its growth. Thus, the correct option for this question is C.
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Why are chemical messengers, or neurotransmitters, needed to get information across the synapse?
Answers
Chemical messengers, or neurotransmitters, are needed to get information across the synapse because they facilitate the communication process between neurons.
Neurotransmitters are chemical substances that act as messengers between neurons and can travel from one neuron to another. They attach to receptors on the receiving neuron, allowing information to be sent from one neuron to the next. The neurotransmitters can either excite or inhibit the receiving neuron, depending on the neurotransmitter type and receptor type.
Thus, neurotransmitters play an important role in information transmission between neurons, which is why they are so important for neural coordination. They facilitate the passage of important information across the synapse.
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Help with this please
Answers
Answer:
Cc
Explanation:
lagit just did this i think
Identify and describe the layers of Earth’s interior.
Answers
1. A pulmonary artery carries blood from
a. the right ventricle to the lung.
b. the lung to the left atrium.
c. one lung to the other.
d. the pulmonary vein to the heart.
Answers
Answer:
D. the pulmonary vein to the heart
PLEASE ONLY ANSWER IF YOU ACTUALLY UNDERSTAND THE CONTENT!
An animal population has two alleles, "B" and "b". They are normal Mendelian alleles. The "B" allele is found at 80% of the gene pool, and the "b" allele is only at 20% of the gene pool. This population is at Hardy-Weinberg equilibrium. What will the percentage of "B" alleles be in the next two generations?
A) 80% and 80%
B) 80% and 64%
C) 60% and 40%
D) 50% and 25%
E) 80% and 40%
Answers
Answer:
c. 60% and 40% have a good day too btw :) <3
Normally, how many chromosomes are required to determine the outward expression of a trait?a homologous paironly oneany twotwo pairs
Answers
Answer:
A homologous pair
Explanation:
In determining the expression trait of humans, this is based on the homologous chromosomes. This in turn comprised of alleles otherwise known as homologous alleles. The homologous loci are thereby located in these alleles which served as the formation of traits when combined.
Hence, normally, A HOMOLOGOUS PAIR is required to determine the outward expression of a trait?
how are biomes affected by latitude and atmospheric cells
Answers
Biomes are affected by latitude and atmospheric cells through the distribution of temperature, precipitation, and vegetation types.
The Hadley cell, Ferrel cell, and Polar cell are responsible for the creation of global wind patterns, precipitation, and temperature distribution.
The Earth's atmosphere is divided into three major cells, each with distinct atmospheric circulation patterns.
As latitude increases, the temperature decreases due to the reduced intensity of solar radiation. This leads to a variation of biomes with latitude. For example, tropical rainforests are found near the equator while tundra and polar deserts are found in the polar regions.
The Hadley cell is responsible for the distribution of tropical rainforests, deserts, and savannas. The Ferrel cell is responsible for the distribution of temperate forests, grasslands, and deserts.
Finally, the Polar cell is responsible for the distribution of polar deserts, tundra, and boreal forests.
The amount of precipitation also varies with latitude and atmospheric cells. Areas near the equator receive high precipitation due to the convergence of trade winds, while areas near the poles receive less precipitation due to the low evaporation rates.
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List 5 fun facts about the salt in the ocean.
Answers
Salt water acts as a conveyor belt to carry heat around the planet.
Salt water can be used to suck carbon dioxide out of the air.
Building batteries that use salt water could solve energy storage problems.
Mixing salt in with the water of cut flowers in a vase will help the flowers live longer
Which of the following would be the most likely reason some minorities may tend to underutilize therapeutic treatment? lack of transportation language barriers irregular work schedules lack of facilities in a rural location
the answer is language barriers took the test on edge 21
Answers
Answer:
B
Explanation:
Answer:
This is correct. It is B. language barriers
Explanation:
It's hard to get therapy if you don't speak the same language.
Which of the following is most likely to contribute to density-dependent regulation of populations? Group of answer choices Individuals voluntarily stop mating so that overcrowding does not occur. Density-independent factors lead to fewer births and increased mortality. The incoming energy decreases in populations experiencing a high rate of increase. Density-dependent factors lead to fewer births and increased mortality.
Answers
Answer:
Density-dependent factors lead to fewer births and increased mortality.
Explanation:
The carrying capacity can be defined as the maximum population size an environment can support. Density-dependent limiting factors produce a logistic growth pattern (S curve) in the population until it reaches its carrying capacity, thereby decreasing the birth rate and increasing the mortality rate in the population. Some important density-dependent limiting factors able to control the size of the population are competition (intraspecific competition), predation and diseases.
Some photosynthetic organisms contain chloroplasts that lack photosystem II, yet are able to survive. The best way to detect the lack of photosystem II in these organisms would beAto determine if they have thylakoids in the chloroplasts.Bto test for liberation of O2 in the light.Cto test for CO2 fixation in the dark.Dto do experiments to generate an action spectrum
Answers
The best way to detect the lack of photosystem II in the organisms in the question above would be to determine if they have thylakoids in the chloroplasts. Therefore, the correct answer is option A.
The photosystem is the unit responsible for the photosynthesis process in organisms. It's consisted of proteins and pigments that transfer electrons to reaction centers utilizing light to energize the electrons.. Photosystems are found in the thylakoid membranes of organisms that do photosynthesis, such as plants, algae, and cyanobacteria. The thylakoid membranes are located inside the chloroplasts (for plants and algae) or cytoplasmic membranes (for cyanobacteria).
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Which of these is a product of cellular respiration?
Answers
Answer: What product?
Explanation:
Answer:
water
Explanation:
HELPP!!! Early stages in the embryo of a fish are similar to the early stages of human and pig embryos. An explanation
for this similarity is that the
A. pig and the human occupy the same habitat, while the fish occupies a different habitat
B. pig and the human are more closely related to each other than to the fish
C. pig, human, and fish evolved from a common ancestor
D. pig, human, and fish had
Answers
Answer:
a convergent evolution that led to similar embryo development patterns
The correct answer is C. pig, human, and fish evolved from a common ancestor.
Similarities in early embryonic development across different animal species suggest a common evolutionary origin. These similarities can be attributed to the conservation of developmental genes and mechanisms from a common ancestor. Therefore, the early stages of embryonic development in fish, pig, and human embryos are similar because they all share a common ancestor. The fact that the fish occupy a different habitat than pigs and humans is not relevant to the similarities in their embryonic development.
The circulatory system allows blood to circulate throughout the body to transport oxygen and nutrients to all the cells and tissues? * true False
Answers
True . ....please awnser my question its about the gift shop
An animal cell placed in a hypotonic solution will _____.
(a) die
(b) take on water
(c) lose water
(d) divide.
Answers
An animal cell placed in a hypotonic solution will take on water.
What is hypotonic?
Hypotonic refers to a solution with a lower concentration of solutes compared to another solution.
A hypotonic solution contains a lower concentration of solutes than the cell which is to be observed.
What is an animal cell?
Animal cells are eukaryotic cells that contain membrane-bound organelles. They also contain a nucleus that houses the cell's DNA. Animal cells vary in shape, but most are round, irregularly shaped, or flat.
What happens to animal cells when placed in a hypotonic solution?
Animal cells are generally placed in isotonic solutions. When the animal cells are placed in a hypotonic solution, they swell up as they gain water. It is important to note that animal cells do not have a cell wall like plant cells. As a result, they can not survive in a hypotonic environment since they cannot withstand the pressure caused by the extra water.
Therefore, option B is the correct answer: An animal cell placed in a hypotonic solution will take on water.
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digestive enzymes from the gallbladder and pancreas go through ducts and then enter the ________.
Answers
Answer: Duodenum
Explanation:
It is in your small intestine the upper part of it. And each day your pancreas will make about digestive juice filled with enzymes. Not a good explanation, I can't explain well.
HELP PLS. In humans, thick eyebrows are dominant to narrow and separated are dominant to joined. Michael has a very thick uniform, and is worried his future children will as well. He is surprised he even has one, since his mother has narrow and separated eyebrows, just like his wife Alexia. Alexia's dad has a unibrow.
Answers
Assuming diallelic genes with no interaction between them, 4) There are 25% chances that their children will look like Michael. 5) All phenotypes have the same likelihood of occurrence, 25%.
Available data:
thick eyebrows are dominant to narrow separated are dominant to joinedMichael has thick and joined eyebrowsMichael's mother has narrow and separated eyebrowsAlexia has narrow and separated eyebrowsAlexia's dad has a unibrow
Let as assume these genes express complete dominance and do not interact.
We will name
T the dominant allele that codes for thick eyebrowst to the recessive allele that codes for narrow eyebrowsS the dominant allele that codes for separated eyebrowss the recessive allele that codes for joined eyebrows.Let us see the genotypes of alexia and michael.
Michael genotype
He is unibrow so his genotype for this trait is ss, h0m0zyg0us recessive.He has a thick eyebrow so he can be either TT or Tt. Since his mother has narrow eyebrow, she is h0m0zyg0us recessive for this trait. Then Michael must have inherited the recessive allele from her, which means that Michael is heter0zyg0us for the trait, Tt.
Michael's genotype is Tt ss
Alexias genotype
She has narrow eyebrows, so her genotype for this traits is h0m0zyg0us recessive, tt. She has separated eyebrows, which means she can be either SS or Ss. Since her father has unibrow (ss) she must have inherited the recessive allele from him. Then Alexia is heter0zyg0us for the trait.
Alexia's genotype is tt Ss
Now let us perform the cross.
Parentals) Tt ss x tt Ss
Gametes) Ts, Ts, ts, ts tS, ts, tS, ts
Punnett square) Ts Ts ts ts
tS TtSs TtSs ttSs ttSs
tS TtSs TtSs ttSs ttSs
ts Ttss Ttss ttss ttss
ts Ttss Ttss ttss ttss
F1)
4/16 = 1/4 = 25% of the progeny is expected to be heter0zyg0us for both traits, expressing thick and separated eyebrows.
4/16 = 1/4 = 25% of the progeny is expected to be ttSs, expressing narrow and separated eyebrows.
4/16 = 1/4 = 25% of the progeny is expected to be Ttss, expressing thick and joined eyebrows.
4/16 = 1/4 = 25% of the progeny is expected to be ttss, expressing narrow and joined eyebrows.
4) There are 25% chances that their children will look like Michael, expressing thick and joined eyebrows, Ttss.
5) All phenotypes have the same likelihood of occurrence, 25%.
25% TtSs thick and separated eyebrows.
25% ttSs narrow and separated eyebrows.
25% Ttss thick and joined eyebrows.
25% ttss narrow and joined eyebrows.
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Which of the following is most likely to be in observation made by an anatomist
Answers
Answer:
The nervous system is composed predominantly of neural tissue.
Explanation: Anatomist study anatomy, the study of the structure of organisms or their parts. By observing the structure of the nervous system, anatomist will tell that it is composed predominantly of neural tissue. So, he observed the structure of one part of an organism.
Question 8 of 10
Which of the following shows the importance of incoming solar energy for life
on Earth?
OA. Electrons
OB. Food chains
OC. Enzymes
D. Rock cycles
Answers
The correct answer is OB. Food chains.
What is a Incoming solar energy?Incoming solar energy is essential for life on Earth as it drives photosynthesis, which is the process by which plants and some other organisms convert sunlight into chemical energy in the form of organic compounds, such as glucose.
Without incoming solar energy, the production of organic compounds through photosynthesis would not be possible, leading to the collapse of the food chain and ultimately the extinction of life on Earth.
Electrons, enzymes, and rock cycles are all important for various processes on Earth, but they are not as directly tied to the production of organic compounds through photosynthesis as incoming solar energy is.
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Which best describes what happens if two waves meet and build on each other?
A. constructive interference
B. destructive interference
C. reflection
D. absorption
Answers
Answer:
constructive interference
Explanation:
when two waves build off of each other, they interfere with one another and construct. therefore, the answer is constructive interference.
When the path difference between subsequent crystal planes is equal to an integral number of electromagnetic radiation wavelengths, constructive interference occurs. Thus, option A is correct.
What is the constructive interference?Where the lines (which represent the peaks) cross over one another, constructive interference occurs. In other words, constructive interference occurs when two waves are in phase.
When two waves are entirely out of phase (a peak is located in the middle of two waves), destructive interference ensues.
Constructive interference is the phenomenon where the total amplitude of two waves is equal to the sum of the amplitudes of the separate waves when two waves are in phase and their maxima add.
Therefore, constructive interference best describes what happens if two waves meet and build on each other.
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a restriction enzyme is used in a restriction digest reaction with linear dna. the enzyme recognizes and cuts the dna at 3 locations. how many bands of dna would be present if this were run on a gel using gel electrophoresis?
Answers
4 bands would be present if the linear DNA undergoes restriction digest reactions and when a restriction enzyme is used and when it runs through electrophoresis.
It is given that the linear DNA was used with a restriction enzyme. The role of restriction enzyme is to cleave the DNA into fragments at specific recognition sites within molecules known as restriction sites using the enzymes endo nucleases or restrictase.
Since the DNA undergoes restriction digest reactions and the DNA is cut at 3 specific recognition sites, then the DNA is cut into fragments of 4 pieces.
So, when the fragmented DNA runs on gel electrophoresis then it shows 4 bands of DNA. Hence, the correct answer is 4.
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What was shown by both Redi’s and Pasteur’s experiments?
Answers
(Mark me the brainliest)
Which factor could increase the carrying capacity of an ecosystem
Answers
The carrying capacity of an ecosystem refers to the maximum population size that can be sustained by the available resources and environmental conditions within that ecosystem.
There are several factors that could increase the carrying capacity of an ecosystem, including:
Increase in available resources: If there is an increase in resources such as food, water, or space, then the ecosystem can support a larger population.
Expansion of the ecosystem: If the ecosystem expands its range or territory, it can support more organisms.
Reduction in predation or disease: If predation or disease is reduced, then more individuals can survive and reproduce, increasing the population size.
Adaptive evolution: If organisms evolve adaptations that allow them to better utilize available resources or cope with environmental conditions, the ecosystem can support more individuals.
Overall, any factor that increases the availability of resources or reduces environmental stressors can potentially increase the carrying capacity of an ecosystem.
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PLSS NEED THIS ASPA!!
WILL GIVE YOU BRAINLYEST!!
If the producer trophic level started with 1000 units of energy, what
amount of energy will the primary consumer trophic level have?
A. 1 unit
B. 10 units
C. 100 units
D. 1000 units
Answers
Answer:
I believe that it would be C because of the 10% rule
Explanation:
I need help on this !!!
Answers
Answer:
D. None of the Above
Explanation:
Hi, could someone tell me what should be in the blank space of my concept map about the cell membrane?
Answers
developing ovarian follicles primarily secrete _____.
Answers
Developing ovarian follicles primarily secrete estrogen.
Estrogens (also known as oestrogens) are steroid substances crucial for the growth and operation of females of the species. They receive their moniker because they are crucial to the oestrus cycle.
The ovaries are the main organs responsible for making estrogen. The follicles on the ovaries release them, and the corpus luteum also secretes them after the egg has been released from the follicle and from the placenta.
The anterior pituitary gland's luteinizing hormone (LH) is responsible for stimulating the production of estrogen. In the cells of the theca interna in the ovary, estrogen is produced.
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