structural analysis of activation domains has revealed that:answer choicesA. most have a pair of alpha helices.B. most have acidic residues that interact with basic residues on the rna polymerase ii.C. they are strikingly similar to repression domains.D. both the first and second answers are correct.E. none of the answers is correct.

Answer:

Natural selection is not decided by humans, but aritifical is. In natural selection, the organism that naturally survives will have their selection of characteristics carried onto the offspring. But in artifical, humans decide which characteristics they want from an offsrping for their sepcific need, e.g largest or colour and breed organisms for that characteristic- not to make them survive better.

Answer: The needles keep the plants from losing water, but still allow them to do photosynthesis.

Explanation:

Conifer trees in the taiga biome have needles instead of leaves, which are coated in wax to reduce water loss. This adaptation is important for survival in the taiga's harsh conditions. The needles also have a smaller surface area, which reduces water loss through evaporation.

However, it's the shape of the tree, not the needle, that helps to shed snow and ice, preventing them from accumulating on branches and potentially breaking them.

No, a mutation is not necessarily a change that results in an offspring less fit for survival than its parents.

Mutations can result in more fit offspring, no change, or less fit offspring depending on the particular mutation.

Mutations are changes in the genetic material (DNA) of a cell and can occur naturally through errors in the replication of DNA, or can be caused by environmental factors such as radiation or chemical mutagens. These mutations can be beneficial, neutral, or deleterious and may or may not result in a change of phenotype in the organism.

If a mutation is beneficial, it may result in offspring that are more fit for survival than their parents. If the mutation is deleterious, it may result in offspring that are less fit for survival than their parents. Neutral mutations have no effect on fitness and may or may not result in a change in phenotype. Regardless of the mutation, it is important to note that the offspring will always have some variation from its parents.

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Answer:

The cell would no longer be able to produce proteins.

Explanation:

A cell contains around 10 million ribosomes; these ribosomes are organelles that create proteins so, without ribosomes, cells would not be able to produce protein further going on they would not be able to function properly.

Hopefully, this helps! if not sorry. :)

Answer:

your lab partner tells you the bacteria are moving in his Graham staines way you can conclude that smear

The amino acid side chains that can begin hydrogen bonds are Threonine (a), Tyrosine (c), Serine (d), and Asparagine (e).

These amino acids feature side chains that include oxygen (O) atoms that can engage in hydrogen bonding.

Because the hydroxyl groups in serine and threonine's side chains are polar and near the main chain, they can establish hydrogen bonds with the main chain.

Many amino acids have groups in their side chains where an oxygen or nitrogen atom is joined by a hydrogen atom. This is a typical circumstance where hydrogen bonding can take place. For instance, the side chain of the amino acid serine has a -OH group.

Four residues—Thr, Ser, Asp, and Asn—have a particularly great propensity to establish hydrogen bonds with nearby residues, according to a study of 322 proteins.

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Q- Which of the following amino acid SIDE CHAINS can form hydrogen bonds? (check all that can)

a. Threonine

b. Valine

c. Tyrosine

d. Serine

e. Asparagine

f.  Phenylalanine

g. Leucine

h. Alanine

i.  Isoleucine

j.  Glycine

Answer:

The leg muscles

Explanation:

Spinal nerves from the sacral region of the cord innervate the leg muscles.

Answer:

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Answer:

cells

Explanation:

Answer: Commensalism

Explanation: Commensalism is a type of symbiotic relationship where one organism benefits and the other is not harmed nor helped.

The protein that binds to the remainder of the DNA polymerase III holoenzyme is located on the 3' side of the enzyme. This interaction is crucial for the functioning of the holoenzyme during DNA replication.

DNA polymerase III is the primary enzyme responsible for synthesizing new DNA strands during replication in bacteria. The holoenzyme is a complex structure consisting of multiple subunits, each with its own specific function. One of these subunits is responsible for binding to the remainder of the holoenzyme. In the holoenzyme structure, the 3' side refers to the end of the DNA template strand where the nucleotides are added during replication. The protein on this side of the holoenzyme binds to the other components of the enzyme complex, allowing for efficient DNA synthesis. This interaction ensures proper coordination and functioning of the holoenzyme during the replication process. Overall, the binding of the protein to the remainder of the DNA polymerase III holoenzyme on the 3' side is essential for the accurate and efficient replication of DNA.

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Answer:

Charles Darwin wrote the theory of evolution.

Answer:

The field if evolution has now been transferred to the Northern hemisphere

Explanation:

try looking online. Look up the word of the definition and go from there :)

Answer:

O The ocean water condenses in clouds.

Explanation:

After the evaporation part of the water cycle, the ocean water vapor rises into the atmosphere and cools, leading to the process of condensation. This results in the formation of clouds. These clouds can then move with the help of wind, and the water droplets within them can combine and grow larger through the process of coalescence. Eventually, the droplets become heavy enough to fall to the Earth's surface as precipitation, which can take the form of rain, snow, sleet, or hail, depending on the temperature and other factors. Therefore, the correct answer is "The ocean water condenses in clouds."

Answer:

Soil are tiny bits of substances that contains animal and plants parts as well as nonliving matter such as rocks. They are compressed together by years of new layers of whatever sitting on top of it (New layers of soil, etc). Erosion also assists in the forming of soil as it may take layers of soil from a forest to another for example.

(a) The probability that exactly 3 individuals have conditions caused by outside factors is 0.183. (b) The probability that 3 or more individuals have conditions caused by outside factors can be calculated using a cumulative binomial distribution table or a statistical calculator. (c) The mean number of individuals with conditions caused by outside factors is 1.8, and the standard deviation is 1.124.

To solve this problem, we can use the binomial distribution since we are dealing with a fixed number of trials (15 patients), and each patient's condition is either caused by outside factors or natural occurrences, with independent probabilities.

(a) To find the probability that exactly 3 individuals have conditions caused by outside factors, we use the binomial probability formula:

Probability = C(n, x) * p^x * q^(n-x)

where n is the total number of trials (15), x is the number of successes (3), p is the probability of success (12% or 0.12), and q is the probability of failure (88% or 0.88).

Plugging in the values, we have:

Probability = C(15, 3) * 0.12^3 * 0.88^(15-3)

Probability = 0.183

Therefore, the probability that exactly 3 individuals have conditions caused by outside factors is 0.183.

(b) To find the probability that 3 or more individuals have conditions caused by outside factors, we need to calculate the probability of 3, 4, 5, ..., 15 individuals having outside factors and sum them up.

Probability = Probability(3) + Probability(4) + ... + Probability(15)

Using the binomial probability formula, we can calculate each individual probability and sum them. However, to save time and effort, we can use a cumulative binomial distribution table or a statistical calculator.

Assuming you have access to a statistical calculator or software, you can enter the values of n (15), p (0.12), and the range of x (from 3 to 15) to get the desired probability.

(c) The mean (μ) and standard deviation (σ) of the number of individuals with conditions caused by outside factors can be calculated using the formulas for the binomial distribution:

Mean (μ) = n * p

Standard deviation (σ) = √(n * p * q)

Plugging in the values, we have:

Mean (μ) = 15 * 0.12 = 1.8

Standard deviation (σ) = √(15 * 0.12 * 0.88) ≈ 1.124

Therefore, the mean number of individuals with conditions caused by outside factors is 1.8, and the standard deviation is approximately 1.124.

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The name of the process that switches genes on and off is called gene regulation.

Gene regulation is the process by which cells control the expression of genes. In order for a gene to be expressed, or "turned on," it must first be transcribed into messenger RNA (mRNA), which then serves as a template for the production of a protein.

However, not all genes need to be expressed all the time, and so cells have developed various mechanisms to control which genes are active at any given time.

There are many different factors that can influence gene regulation, including environmental cues, cellular signaling pathways, and epigenetic modifications to the DNA itself.

The complex interplay between these factors allows cells to finely tune the expression of genes in response to changing conditions, enabling them to carry out a wide range of specialized functions and respond to a variety of stimuli.

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The haplotypes inferred using the EM algorithm are: H1 = 122, H2 = 210, H3 = 212.

The EM algorithm estimates haplotypes by iteratively updating probabilities based on observed genotypes. Initially, assume equal frequencies for all haplotypes. In the E-step, compute genotype probabilities given haplotype frequencies. For G1, H1 has the highest probability.

For G2, H2 is the most likely haplotype. For G3, H3 is the most probable haplotype. In the M-step, update haplotype frequencies based on genotype probabilities.

Since we only perform one round, the updated haplotype frequencies are the final estimates. The EM algorithm suggests H1 occurs twice, H2 occurs once, and H3 also occurs once.

These haplotypes are inferred based on the observed genotypes and the assumption of uniform initial haplotype frequencies.

This means that the most likely haplotypes for the three genotypes are 122, 210, and 212, respectively.

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Answer:

B. Light

Explanation:

Photosynthesis uses the thermal energy from sunlight to react with carbon dioxide and oxygen, producing glucose.

Answer:

light

Explanation:

the main source of energy is light because light brings energy to the thylakoid membrane in the chlorophyll which causes electrons from the photolysis of water to get excited.

Answer:

power plant? ( sorry if it wrong)

Answer:

Explanation:

Chemical thesis something like that

Prokaryotic organisms are unicellular organisms that lack a nucleus and other membrane-bound organelles. They are found in the domains Bacteria and Archaea.

There are many components present in prokaryotic organisms. Some of them are discussed below:

Cell wall: This is a tough, protective layer that surrounds the cell membrane in bacteria and archaea. The cell wall is made up of peptidoglycan in bacteria and other materials in archaea.

Flagella: It is a whip-like structure that is used by many prokaryotic cells to move. The flagellum rotates like a propeller, allowing the cell to swim through liquid environments.

Pili or fimbriae: These are short, hair-like structures that extend from the surface of many prokaryotic cells. They are used for attachment to surfaces or other cells.

Capsule: It is a protective layer that surrounds the cell wall of some prokaryotic cells. The capsule is made up of a gel-like material that helps the cell to avoid being engulfed by immune cells such as macrophages.

Ribosomes: They are the site of protein synthesis in prokaryotic cells. Ribosomes are made up of two subunits that come together to form a functional ribosome.In conclusion, components that are present in prokaryotic organisms are cell wall, flagella, pili or fimbriae, capsule, and ribosomes.

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Its an RNA molecule I took the test in the 9th grade  

Answer:

that would be C, seafloor spreading occurs!

Explanation:

Answer:

c

Explanation:

As reactant levels increase, substrate molecules and creatine phosphate now more readily encounter the binding sites on the enzyme.

When reactant levels rise, there is a higher concentration of substrate molecules and creatine phosphate available in the surrounding environment. This increased availability means that there is a greater likelihood of these molecules coming into contact with the binding sites on the enzyme. As a result, the enzyme-substrate complexes can form more frequently and efficiently. This leads to an increased rate of the catalytic reaction facilitated by the enzyme. In other words, as reactant levels increase, the chances of substrate molecules and creatine phosphate successfully binding to the enzyme and participating in the reaction become higher.

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The beads-on-a-string form of chromatin is referred to as the 30 nm solenoid.

The beads-on-a-string form of chromatin refers to the structure formed when DNA is wrapped around histone proteins, creating nucleosomes that resemble beads on a string. This nucleosome structure is around 10 nm in diameter and represents the first level of chromatin compaction.

However, the 30 nm solenoid is the next level of chromatin organization that occurs when the nucleosomes further condense and fold into a more compact structure. This solenoid structure is formed by interactions between nucleosomes and results in a thicker fiber approximately 30 nm in diameter.

Therefore, the correct answer is c- The 30 nm solenoid.

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Food processing and cooking can affect enzymes in food products, as enzymes are sensitive to heat, pH changes, and other processing techniques.

Enzymes are protein molecules that catalyze biochemical reactions in living organisms, including those involved in food products. Food processing and cooking techniques can impact enzymes in several ways. Heat, for example, can denature enzymes, causing structural changes that affect their activity. High temperatures can lead to the inactivation of enzymes, rendering them unable to carry out their specific functions.

Additionally, pH changes resulting from food processing methods, such as fermentation or adding acidic or alkaline ingredients, can affect enzyme activity. Enzymes have optimal pH ranges in which they function best, and deviations from these ranges can alter their activity or denature them.

Furthermore, processing techniques like blending, grinding, or chopping can disrupt the cellular structure of foods, potentially exposing enzymes to oxygen or other factors that may cause their degradation.

It is important to note that not all enzymes are affected in the same way by food processing and cooking. Some enzymes are more heat-stable and retain their activity even after cooking, while others are more sensitive and may be completely inactivated. The extent of enzyme alteration or inactivation depends on factors such as the specific enzyme, the processing method employed, and the duration and intensity of processing or cooking.

Overall, food processing and cooking can have varying effects on enzymes in food products, with the potential for enzyme inactivation, alteration in activity, or retention of activity depending on the specific conditions and characteristics of the enzymes involved.

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Answer:

Explanation:

Fats are storage of energy in form of organic molecules in our body.