A chromosome contains the following gene order: A B C D • E F G H
Which of the following rearrangements represents a paracentric inversion?
A)A B C • D E F G H
B)A F G H • B C D E
C)A C B D • E F G H
D)A F D E • C B G H
E)A B C D • H G F E

Question

Quizplus · Accepted Answer

A paracentric inversion is an inversion that does not include the centromere. In choice C, the segment between C and B is inverted, but the centromere is not involved. In choices A, B, D, and E, the centromere is included in the inverted segment, making them pericentric inversions.

A Chromosome Contains the Following Gene Order: a B C