Which of the following events causes recombination between linked genes to occur?
A) Mutation on one homolog is different from that on the other homolog.
B) When genes are linked they always "travel" together at anaphase.
C) Crossovers between these genes result in chromosomal exchange.
D) Nonrecombinant chromosomes break and then re-join with one another.

Question

Quizplus · Accepted Answer

Recombination between linked genes occurs through crossovers, which result in chromosomal exchange. This is the process of genetic recombination during which two chromosomes pair up and exchange segments of their genetic material. The crossing over of linked genes creates new gene combinations and increases genetic diversity. A mutation (A) or nonrecombinant chromosomes breaking and then rejoining (D) can also cause genetic variation, but they do not specifically result in recombination between linked genes. Linked genes do not always travel together (B) at anaphase, as they can undergo recombination events during meiosis.

Which of the Following Events Causes Recombination Between Linked Genes