Use the CODON CHART to answer the following question.

CCG UUG ACC GCG

What is the sequence of amino acids that will be translated from the mRNA above?
How to Read the Amino Acids Codon Chart - Genetic Code and mRNA Translation - Rs Science Study chemistry Biology notes Amino acids
Responses

proline - threonine - alanine - luecine
proline - threonine - alanine - luecine

proline - phenylalanine - tyrosine - arginine
proline - phenylalanine - tyrosine - arginine

arginine - leucine - threoinine - alanine
arginine - leucine - threoinine - alanine EndFragment

proline - leucine - threonine - alanine

11 answers

To determine the sequence of amino acids that will be translated from the given mRNA codons (CCG UUG ACC GCG), we can use a standard codon chart.

Here are the steps for translation of each of the mRNA codons:

  1. CCG - Proline (Pro)
  2. UUG - Leucine (Leu)
  3. ACC - Threonine (Thr)
  4. GCG - Alanine (Ala)

Putting these together, the sequence of amino acids translated from the mRNA is:

Proline - Leucine - Threonine - Alanine

So the correct response is:

proline - leucine - threonine - alanine

Look at the diagram below.

Which cell structure is responsible for the excretion of most cellular wastes to maintain homeostasis?

Responses

A: nucleus
A: nucleus

B: cell membrane
B: cell membrane

C: vacuole
C: vacuole

D: ribosome

The cell structure responsible for the excretion of most cellular wastes to maintain homeostasis is:

B: cell membrane

The cell membrane regulates the movement of substances into and out of the cell, including the excretion of waste products.

In the dihybrid cross for pea plants shown below, R is dominant for round peas, r is recessive for wrinkled peas, Y is dominant for yellow peas, and y is recessive for green peas. A student could accurately make which statements about the offspring of this cross?

Responses

There is no chance of having any round, yellow peas.
There is no chance of having any round, yellow peas.

There is a 50% chance of having round, yellow peas.
There is a 50% chance of having round, yellow peas.

There is a 100% chance of having round, green peas.
There is a 100% chance of having round, green peas.

There is no chance of having any wrinkled, green peas.

To determine the outcomes of a dihybrid cross, let's define the parental genotypes. For instance, if we were to cross a plant with the genotype RrYy (heterozygous for both traits) with another RrYy plant, we can analyze the possible phenotypes of the offspring.

Here are the traits:

  • R (round) is dominant over r (wrinkled).
  • Y (yellow) is dominant over y (green).

Punnett Square Analysis

When performing a dihybrid cross RrYy x RrYy, we can use a Punnett square to help visualize the combinations of alleles:

  1. Possible gametes from each parent: RY, Ry, rY, ry.
  2. Create a 4x4 Punnett square for the offspring.

The offspring combinations will yield:

  • Round Yellow (RY)
  • Round Green (Ry)
  • Wrinkled Yellow (rY)
  • Wrinkled Green (ry)

Probabilities

By analyzing the Punnett square:

  1. Round Yellow Peas (RY): These will occur in several combinations, leading to a probability of 9 out of 16 total offspring (round yellow).
  2. Round Green Peas (Ry): There are 3 out of 16 total offspring (round green).
  3. Wrinkled Yellow Peas (rY): There are 3 out of 16 total offspring (wrinkled yellow).
  4. Wrinkled Green Peas (ry): There is 1 out of 16 total offspring (wrinkled green).

Evaluating the Statements

  • There is no chance of having any round, yellow peas: False (there is a significant chance).
  • There is a 50% chance of having round, yellow peas: False (it would be 9 out of 16).
  • There is a 100% chance of having round, green peas: False (there is only a 3 out of 16 chance).
  • There is no chance of having any wrinkled, green peas: False (there is a 1 out of 16 chance).

Given these analyses, none of the statements presented about the offspring of this cross are accurate based on the typical ratios seen in a dihybrid cross.

what is the answer

Based on the analysis of a dihybrid cross (RrYy x RrYy) for pea plants, the correct response is:

There is no chance of having any round, yellow peas. - False

There is a 50% chance of having round, yellow peas. - False

There is a 100% chance of having round, green peas. - False

There is no chance of having any wrinkled, green peas. - False

Since all the individual statements provided are inaccurate in the context of a typical dihybrid cross, it's important to note that the correct conclusion from a dihybrid cross, especially as we derive it logically, suggests that there is a chance of obtaining all combinations of pea types (both round and wrinkled; both yellow and green).

The specific details for offspring traits in a standard RrYy x RrYy dihybrid cross would show that:

  • There is a positive chance for round yellow, round green, wrinkled yellow, and wrinkled green.

Thus, none of the provided options contain accurate statements regarding the offspring. If these options are your only choices and there is an anticipation of one being correct based on contextual understanding of genetics, it should be acknowledged that there are opportunities for round yellow, round green, wrinkled yellow, and wrinkled green having been potentially requested in previous surveys or expectations of those statings providing statistical representation.

Given the options available, if that is the case, please check if options presented directly specify different values or reconsider the specifics listed previously highlighted in their presentation for potential error.

Enzymes help living organisms metabolize food. Typically, an enzyme acts to
Responses

slow down a metabolic reaction, which prevents the organism from developing a stomach disease.
slow down a metabolic reaction, which prevents the organism from developing a stomach disease.

transform a metabolic reaction into an oxidation reaction, which assists the organism in getting oxygen.
transform a metabolic reaction into an oxidation reaction, which assists the organism in getting oxygen.

speed up a metabolic reaction, which allows the organism to get energy quickly.
speed up a metabolic reaction, which allows the organism to get energy quickly.

maintain a metabolic reaction, which causes the organism to lose energy as it takes in food.

The correct response regarding the function of enzymes in living organisms is:

speed up a metabolic reaction, which allows the organism to get energy quickly.

Enzymes are biological catalysts that accelerate chemical reactions in the body, significantly increasing the rates at which metabolic processes occur, thereby enabling organisms to efficiently utilize food for energy.

Proteins and carbohydrates are alike in that they both
Responses

transmit RNA in cells.
transmit RNA in cells.

provide structural support in cells.
provide structural support in cells.

encode DNA in cells.
encode DNA in cells.

dissolve vesicles in cells.

The correct response regarding how proteins and carbohydrates are alike is:

provide structural support in cells.

Both proteins (such as collagen and keratin) and carbohydrates (like cellulose in plant cell walls) contribute to the structural integrity of cells and tissues. The other options do not correctly apply to both proteins and carbohydrates.