Robertsonian translocations result from which of the following?
A)Breaks occur at or near the centromeres of two acrocentric chromosomes followed by the reciprocal exchange of broken parts.
B)A part of one chromosome becomes attached to a non-homologous chromosome.
C)Unequal crossing over occurs during meiosis.
D)There is fusion of two small chromosomes end-to-end such that a double centromere occurs.

Question

Quizplus · Accepted Answer

Robertsonian translocations occur when breaks occur at or near the centromeres of two acrocentric chromosomes (chromosomes with the centromere near one end) followed by the reciprocal exchange of the broken parts. This results in one large chromosome with the centromeres from both original chromosomes, and one small chromosome that lacks a centromere.

Robertsonian Translocations Result from Which of the Following