Question

In a "missense" mutation:

Select one:
a. The codon that mutates does not cause a change in the amino acid specified
b. The codon that mutates causes a change in the amino acid specified
c. The codon that mutates causes a stop codon to occur instead of the placement of an amino acid
d. All of the above are correct answers
e. None of the above are correct

Answer 1

A missense mutation is a type of mutation where a single base pair change in the DNA sequence results in a different amino acid being inserted into the protein.

Step-by-step explanation:

A missense mutation is a type of mutation where a single base pair change in the DNA sequence results in a different amino acid being inserted into the protein. This causes a change in the amino acid specified by the codon that mutates.

For example, in the case of sickle cell disease, a missense mutation substitutes valine for the normal amino acid glutamic acid in the hemoglobin protein.

So, the correct answer is b. The codon that mutates causes a change in the amino acid specified.