Question

The points where two non-sister chromatids crossover are called-
(A) Chiasmata
(B) Centromere
(C) Chromomeres
(D) Chromatids

Answer 1

Answer:

chiasmata -The points where two non sister chromatids crossover

Answer 2

Answer:

The correct answer is (A) chiasmata. It is the point of contact between two non-related chromatids of the homologous chromosomes.

During the process of synapsis, crossing over takes place between non-sister chromatids. This results in the exchange of alleles between these chromatids. The connected chromatids are known as bivalents or tetrads.