DNA contains a code for synthesizing proteins. Three nucleotides in a row code for a particular amino acid. There are four nucleotides in DNA, which are abbreviated as A,T,C,G. The amino acids are joined to form a protein. Genetic mutations can occur in the DNA of individuals. Some mutations are harmful, some have no effect, and some might be beneficial to the organism. The table shows the nucleotide sequence of DNA that codes for a protein in one individual and the nucleotide sequence of the same segment of DNA in an individual with a mutation.

Question

Which statement describes the most likely impact of the mutation in the mutated sequence?

(1 point)
Responses

There will be no effect because the rest of the DNA is normal.
There will be no effect because the rest of the DNA is normal.

The mutated DNA will code for the same number of amino acids as the original sequence.
The mutated DNA will code for the same number of amino acids as the original sequence.

The extra nucleotide will be deleted before the protein is formed.
The extra nucleotide will be deleted before the protein is formed.

The protein formed will not be the same as that formed from the original DNA sequence.

Answer 1

The most likely impact of the mutation in the mutated sequence is:

The protein formed will not be the same as that formed from the original DNA sequence.

This statement is typically accurate because mutations can lead to changes in the nucleotide sequence, which may alter the codons (three-nucleotide sequences) that code for specific amino acids. As a result, the structure and function of the resulting protein can be affected. Depending on the nature of the mutation, such as a substitution, insertion, or deletion, the protein may differ in its amino acid sequence and potentially its functionality.