Question

The number of chiasmata depends upon the

• A. Width of the chromosomes
• B. Length of chromosomes
• C. Location of centromere of a chromosome
• D. None of the above

Answer 1

The correct option is B Length of chromosomes

Chiasmata is the site of crossing over. This is the location where the exchange of the genetic material between the non-sister chromatids of the homologous chromosomes occurs. Depending on the length of the chromosome, the formation of more than one chiasmata can take place. so, the number of chiasmata depends on the length of the chromosomes.

Thus, the correct answer is option B.