1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sergeinik [125]
3 years ago
15

Calculate the minimum number of nucleotides required in the coding region of the LDS2B mRNA molecule to produce and terminate th

e 565-amino acid polypeptide. Provide TWO reasons why the number of nucleotides in the mature RNA may differ from the number of base pairs in the gene. (3 points).
Biology
1 answer:
Alexandra [31]3 years ago
7 0

1698 is the minimum number of nucleotides required in the coding region of the LDS2B mRNA molecule to produce and terminate the 565-amino acid polypeptide.

TWO reasons why the number of nucleotides in the mature RNA may differ from the number of base pairs in the gene are:

i) because gene contains non coding sequence also called as introns +exons while mature mRNA contains only exons.

ii) genes have promoter region while mature mRNA does not have so.

Explanation:

The minimum number of nucleotides in the coding region of a mRNA sequence or molecule is number of amino acids multiplied by three. There are triplet codon or 3 nucleotides which code for an amino acid.

number of nucleotides = number of amino acids x 3

number of nucleotides = 565 x 3

number of nucleotides= 1695 nucleotides

The stop codon would also be added as it is a part of mature RNA so

1695 + 3 = 1698

The coding region or exons carry only the nucleotides which code for amino acid polypeptide chain.

The two reasons why number of nucleotides in mature RNA and gene is different:

1) Because the gene carries both introns (non-coding regions) and exons (coding region) and mature mRNA after spicing removes the introns and has only exons which are read by the tRNA to carry amino acids in translation.

2) Genes consist of promoter region which are not transcribed hence not transferred to mRNA. Although mRNA is transcribed using the promoter region.

You might be interested in
What’s the difference between a standing defense and an induced defense?
gizmo_the_mogwai [7]

The correct answer is: 4) Standing defenses are always present; induced defenses develop in response to a threat

Induced defense is defense that can be changed or invoked when needed. Induced defenses are slow to happen. When invoked, induced defense requires energy but otherwise doesn’t.

Standing defense is always there. It is use, for example when predation is a constant threat.

3 0
3 years ago
Which term describes this diagram?
Ghella [55]

Food chain is the answer.

8 0
3 years ago
Read 2 more answers
Lucy volunteers at an animal shelter, and she takes care of an orange tabby cat and her kittens. Some of the kittens have orange
dmitriy555 [2]

Answer:

genes c

Explanation:

4 0
3 years ago
What do we call the study of the body structures we can see with our eyes?
Y_Kistochka [10]
Physical structures..........
4 0
3 years ago
What are the body’s three defenses? How do they differ from each other.
Artemon [7]

Answer:

- Physical and chemical barriers

- non-specific innate responses

- specific adaptive responses

<u>The differences are...</u>

The first barrier is the physical and chemical barrier. It is the first line of defense when in contact with outside sources, this can be through the skin, earwax, nose-hair, etc.

The second barrier, the non-specific innate response, is after these outside sources have somehow managed to pass through the first barrier. They come into contact with cells and enzymes that help to defeat them.

The third barrier, the specific adaptive response, is the body's way of dealing with pathogens that the body has encountered before. (B cells activate)

8 0
3 years ago
Other questions:
  • PLEASE HELP! WILL MARK AS BRAINLIEST!!!
    13·2 answers
  • What would you expect to find in all organisms?
    14·2 answers
  • In one type of cell division a single cell form 2 new cells this process is.called mitosis what is a reason that human skin cell
    11·1 answer
  • Which factors improve soil fertility? select three answers
    5·2 answers
  • V
    6·1 answer
  • Scientists can track the movement of proteins through the endomembrane system using an approach known as a pulse-chase experimen
    13·1 answer
  • During the yeast fermentation experiment, what change indicates yeast are fermented
    15·1 answer
  • Animals obtain energy through a series of chemical reactions in with sugar and oxygen gas are reactants this process produces wa
    14·1 answer
  • How is the environment affected by a large-scale oil spill?
    11·1 answer
  • When does crossing over occur in meiosis
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!