A chromosome's gene sequence that was ABCDEFG before damage and ABCGFED after is an example of a(n) ____.
A)inversion
B)deletion
C)duplication
D)translocation
E)crossing over

Question

Quizplus · Accepted Answer

An inversion occurs when a segment of a chromosome breaks off, rotates 180 degrees, and reattaches itself to the same chromosome. This can result in a reversal of the gene sequence, as seen in the example given.

A Chromosome's Gene Sequence That Was ABCDEFG Before Damage and ABCGFED