Direct repeats can cause mutation when
A)a person encounters a mutagen.
B)homologs misalign during meiosis such that the first copy of the gene on one chromosome lies opposite the second copy on the homolog.
C)introns are not removed promptly and their sequences are included in the gene product.
D)they bond within the same DNA strand,forming loops that disrupt replication enzymes.

Question

Quizplus · Accepted Answer

Homologs misaligning during meiosis can lead to unequal crossover events that result in duplication or deletion of one or more genes. If direct repeats are present in the misaligned region, this can further increase the likelihood of mutation. The other options (A, C, D) do not directly involve the presence of direct repeats as the cause of mutation.

Direct Repeats Can Cause Mutation When