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
alisha [4.7K]
3 years ago
11

A mutation creates a dominant negative allele of a particular gene. The normal allele of the gene encodes a protein that forms a

trimer within the cell. If one or more of the subunits has the mutant structure, the entire trimeric protein is inactive. In a heterozygous cell, if the proteins of both alleles are present at the same levels, what percent of the trimers present in the cell will be inactive
Biology
1 answer:
Wewaii [24]3 years ago
8 0

Answer:

87.5% of the trimers in the cell will be inactive.

Explanation:

A monomer is a single subunit. Look at an easy comparison. If a monomer is a ball. For the protein to be functional, it needs to be a trimer .A trimer = 3 monomers joined / bound together with bonds. Therefore, if a monomer is a ball, we need 3 balls, we attach it together and that is the primer . if one ball becomes missing, that protein won't work .

In chemistry, a trimer is regarded as three molecules or ions of the same substance (that is, same type) which are associated together .

Double negative : Each gene has 2 alleles. So, for a positive protein, both allele needs to be same, let's say + means on. So for a x protein , if it's x+/x+ it means the protein is homozygous and active. If for some mutation, it's x+/x- , it's a heterozygous protein. Double negative means when it is x-/x- and this means the protein has lost is function . It's not functional at all.

The heterozygous cell will form one or more subunits has the mutant structure when the gene is expressed. From the question if there is a mutation in dominant negative allele, it will cause the inactivation of one trimer resulting in 87.5% inactive trimers for a heterozygous individual.

There are 87.5 % percent of the trimers present in the cell which will be inactive for a heterozygous individual, If at least one of the subunits has the mutant structure.

The probability for each individual subunit to be a mutant is 1/2

Gene codes for a protein that forms trimer so the percentage of the trimers present in the heterozygous individual is third power of 1/2 =1/8

1/8=0.125 will be active.

1- 0.125 will be inactive.

=0.875 will be inactive.

0.875 × 100= 87.5%

Therefore 87.5% will be inactive.

You might be interested in
When a counterfeit detection pen is used on an authentic bill, what color does it turn?
garik1379 [7]
If the bill is counterfeit and the paper is wood-based, the iodine in the pen solution will react with the starch and leave a dark brown or black mark.
7 0
3 years ago
Cuanta poblacion tiene Janca
guajiro [1.7K]

Answer:

creo que es una población pequeña

Explanation:

7 0
3 years ago
Read 2 more answers
Which part of the brain helps you learn new things in gym class?
natali 33 [55]

Answer:

Hippocampus

Explanation:

The part of the brain that responds strongly to aerobic exercise is the hippocampus. It supports memory, learning, navigation and perception of space.

<h2>BRAINLIESST please if this helped!</h2>
5 0
2 years ago
Why is the archaea domain closer to eukarya than bacteria?
harkovskaia [24]

Answer:

Archaea domain is closer to eukarya than bacteria because genetically they are more similar to Eukarya than Bacteria.

Explanation:

Options for this question are:

  • <em>They both lack a nucleus and contain  cytoplasm. </em>
  • <em>The unique functional adaptations of Archaea are more similar to Eukarya adaptations.  </em>
  • <em> They both evolved in the same geological time period. </em>
  • <em> </em><em>Genetically, the Archaea are more similar to Eukarya than Bacteria. </em>
  • <em> They both have membrane-bound organelles. </em>
  • <em> Archaea is not closer to Eukarya because it contains prokaryotic cells just like Bacteria.</em>

Archaea are unicellular prokaryotic organisms, which share many characteristics with bacteria, however, the existence of metabolic functions and genes similar to eukaryotic organisms suggest that there is a genetic link between the two. Even the enzymes responsible for genetic processing, such as transcriptases and translation enzymes, are similar to those in eukaryotic cells.

The theory that establishes the relationship between Archaea and Eukaryotic suggests the existence of a common ancestor, whose later evolution allowed an Archaea to join a protobacteria to form a eukaryotic cell, and hence their genetic relationship.

Learn more:

Three domains brainly.com/question/330218

4 0
3 years ago
Consider the partial sequence of a peptide.
alexdok [17]

Answer:

a b d g k e

Explanation:

it should be

5 0
3 years ago
Other questions:
  • Zebra herds that live and move together are an example of what type of dispersion?
    10·1 answer
  • What is a group of ravens called?
    14·1 answer
  • Almonds may be small, but they pack a great number of nutrients, including protein, vitamin E, and vitamin B2. Almonds also cont
    14·2 answers
  • Which of the following are associated with a rock's chemical composition? Select all that apply.
    15·2 answers
  • Why the atmosphere must be studied in order to study winds.
    13·1 answer
  • Arrange the order of events for the internalization of LDL particles into cells:
    12·1 answer
  • In humans, hemophilia is sex linked. If a woman is a carrier for the trait, what is the chance that her daughters will also be c
    14·1 answer
  • Soluble salts can be made by mixing acids and alkalis What name is given to this type of reaction?​
    6·1 answer
  • Which of the following adds oxygen to the atmosphere?
    5·2 answers
  • Tons of biodegradable soild waste are produced each day in cities suggest some ways to change waste into energy.​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!