Chromosomal inversions may result in: 1.The chromosome segment being detached,flipped 180 degrees,and reattached to the existing chromosome portion
2)The order of the inverted segments gene's being reversed
3)The order of the inverted segments gene's being replaced with new genes
A) 1
B) 2
C) 3
D) 1 and 2
E) 1 and 3

Question

Quizplus · Accepted Answer

Chromosomal inversions involve the detachment, flipping, and reattachment of a chromosome segment, resulting in a reversal of the order of the inverted segment's genes. This is reflected in both choices 1 and 2. However, choice 3, the order of the inverted segments gene's being replaced with new genes, is not accurate as inversions do not involve the insertion or deletion of genes, but rather a rearrangement of the existing gene order. Therefore, the best choice is D, which encompasses the accurate outcomes of chromosomal inversions.

Chromosomal Inversions May Result In: 1