The mutation that causes the lighter skin color of all people of European descent was the result of a ____ in the gene for a melanin transport protein.
A) base-pair substitution
B) insertion
C) deletion
D) whole chromosome duplication
E) multiple gene mutations involving several mechanisms

Question

The mutation that causes the lighter skin color of all people of European descent was the result of a ____ in the gene for a melanin transport protein.​
A) ​base-pair substitution
B) ​insertion
C) ​deletion
D) ​whole chromosome duplication
E) ​multiple gene mutations involving several mechanisms

Quizplus · Accepted Answer

A base-pair substitution in the gene for a melanin transport protein is responsible for the lighter skin color observed in people of European descent. This type of mutation involves the replacement of one nucleotide base pair with another, which can affect the function of the protein produced, in this case, influencing skin pigmentation.

The Mutation That Causes the Lighter Skin Color of All