Recombination involves the breakage and reunion of DNA molecules from
A) homologous nonsister chromatids.
B) homologous sister chromatids.
C) heterologous nonsister chromatids.
D) heterologous sister chromatids.
E) None of the choices are correct.

Question

Quizplus · Accepted Answer

Recombination involves the exchange of genetic material between homologous chromosomes during meiosis. This exchange occurs between nonsister chromatids from each homologous pair, which are homologous but not identical in sequence. Therefore, option A is the correct choice as it involves homologous nonsister chromatids. Options B, C, and D involve incorrect combinations of chromatids. Option E is incorrect as there is a correct choice.

Recombination Involves the Breakage and Reunion of DNA Molecules from