When a segment of DNA duplicates,causing 2 or more copies of a gene to be present in the chromosome,the most likely fate of the duplicate(s)would not be
A)to lose function in subsequent mutation.
B)to improve function in subsequent mutation.
C)to gain a new function in subsequent mutation.
D)to become a pseudogene.
E)to become part of a gene family.

Question

Quizplus · Accepted Answer

While it is possible for a duplicate gene to improve function through subsequent mutation, it is not the most likely fate. More commonly, duplicate genes will either lose function through subsequent mutation and become a pseudogene or gain a new function through subsequent mutation. Duplicate genes may also become part of a gene family where they express similar but distinct functions.

When a Segment of DNA Duplicates,causing 2 or More Copies