Question Detail
Question
Chromosomal crossing over occurs between _____ chromatids
Correct Answer
Option B is the correct answer.
Detailed Explanation
Crossing over, the exchange of genetic material, occurs between non-sister chromatids of homologous chromosomes. This means a chromatid from one chromosome exchanges segments with a chromatid from its homologous partner.
Hint
Does crossing over happen between the two identical copies from the same chromosome, or between different chromosomes?