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
5. The Nucleolus is small, dense object found in the middle of the nucleus. It makes the RNA for the cell.
SIZIF [17.4K]

Answer:

b

Explanation:b

6 0
3 years ago
Cellular respiration can best be described as Group of answer choices using energy released from breaking high-energy covalent b
pochemuha

Answer:

using energy released from breaking high-energy covalent bonds in organic molecules to force ATP formation from ADP and phosphate.

Explanation:

The cellular respiration involves the generation of energy for bodily activities. This is technically known as the Kreb's Cycle or citric acid cycle. This is the process through which the intracellular metabolism of glucose takes place. Specialized organelles, called mitochondria are responsible for the process. The organelles ensure that the breaking of the high energy phosphate bonds in the ATP monocle generate energy. Overally, the process is a hydrolysis process. This involves the movement of the hydrogen ions an the generation of 38 high energy phosphate bond breakages.

6 0
3 years ago
Read 2 more answers
Coal is found today where swamps used to exist<br> true or false
krok68 [10]

Answer:

true

Explanation:

hope it helps , pls mark me as brainliest

6 0
3 years ago
Read 2 more answers
Talus is commonly found near the base of what
atroni [7]
It would be found around mountains 
7 0
3 years ago
What gives water many properties that are important to living things
galben [10]
Hydrogen, for example, it gives trees inter molecular force. 
4 0
3 years ago
Other questions:
  • Explain how the processes of sea-floor spreading and magnetic reversal produce bands of oceanic crust that have different magnet
    9·1 answer
  • Which of these is an organism, virus, heart, lungs, or bacteria?
    5·2 answers
  • What is a long-term effect of the increased primary productivity of a terrestrial ecosystem
    15·2 answers
  • A rock rusting is an example of _____. NOW!!!!!!!!
    15·2 answers
  • I NEED HELP QUICK
    14·1 answer
  • Which plant cell structure provides support for the cell
    8·2 answers
  • What does the blood transport to the body cells? A. nutrients &amp; oxygen B. wastes &amp; things the body can't use
    8·2 answers
  • Which of the following best describes a population?
    15·1 answer
  • Does anyone like 5sos or why don't we?
    5·2 answers
  • In earthworms, what do the nerve cord, the setae, the circular muscles, and the metanephridia have in common?.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!