Homologous recombination may result in gene conversion when used to fix double-stranded DNA breaks because
A)sister chromatids are always identical.
B)homologous recombination is prone to errors,potentially causing permanent genetic mutations.
C)strand invasion may introduce new genes onto the damaged chromosome.
D)homologous chromosomes may carry different alleles of the same gene.
E)the Holliday junction may migrate,resulting in loss of genetic material.

Question

Quizplus · Accepted Answer

Homologous recombination involves the exchange of genetic material between homologous chromosomes, which can carry different alleles of the same gene. When repairing double-stranded DNA breaks, this process can lead to gene conversion if the sequence from one chromosome is used as a template to repair the other, potentially replacing one allele with another.

Homologous Recombination May Result in Gene Conversion When Used to Fix