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Which of the following conclusions can be made about the potential effect of genetic mutations
on physical characteristics?
A. All genetic mutations will result in a change to a person's physical traits.
B. If the genetic mutation causes a change to the protein sequence, then a person's physical
traits will be affected.
c. If a genetic mutation occurs but does not cause a change to the protein sequence, a
person's physical traits will be affected.
D. If the genetic mutation causes a change to the protein sequence, then a person's physical
traits will not be affected.

Respuesta :

Iqta

Answer:

The answer is B. If the mutation causes a change in the protein sequence, then a person's physical traits will be affected.

Explanation:

Mutations:

Mutations are changes or alterations in the DNA sequence that codes for functional proteins.

Types of Mutations and their Phenotypic Effects:

Mutations are of various types but those specifically affecting the DNA sequence are called point mutations. Point mutations are of the following types:

  1. Substitutions
  2. Deletions
  3. Insertions

Substitutions:

  • Substitutions are the alterations of a single base pair. These are further of three types:
  1. Nonsense mutations change the sequence in a way that a stop codon is introduced. This produces a truncated, non-functional protein.
  2. Missense mutations replace one codon with another codon. This results in alterations in the amino acid sequence of the encoded protein. This will also be non-functional.
  3. Silent mutations change the DNA sequence but in a way that the new codon codes for the same amino acid. Therefore, the sequence of the protein is conserved.
  • Deletions remove one or more base pairs from the sequence, resulting in a changed or truncated protein.
  • Insertions add one or more base pairs, resulting in a no-functional protein.
  • Both insertions and deletions (if one or two bass are added or deleted) alter the frame of reference of the DNA sequence.

A modification or variation in a DNA or the protein array of an individual is called a Genetic mutation. The most common example of genetic modification is sickle cell anaemia.

The correct answer is:

Option B.  If the genetic mutation causes a change to the protein sequence, then a person's physical traits will be affected.

This can be explained as:

  • If the (genotype) the genetic data or the (phenotype) physical attributes get altered then the organism is said to be mutated.

  • Deletion, extension or replacement of nucleotide in the genetic array can rise in mutation.

  • The incorporation of the wrong amino acid or deletion in a sequence is called missense mutation.

  • Variation in the amino acid array will modify the arrangement and use of the protein.

  • In the case of sickle cell disease, a particular amino acid gets modified that influences the shape and role of the blood cell and results in disease.

Therefore, alteration in the sequence can alter the phenotypical characteristics.

To learn more about missense mutation and genetic mutation refer to the link:

https://brainly.com/question/15870401

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