Robertsonian Translocations Result from Which of the Following

Multiple Choice

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.