The exchange of genetic material between chromatids of paired homologous chromosomes during first meiotic division is called

Options

A. transformation
B. chiasmata
C. crossing over
D. synapsis

Answer

C

Explanation

In pachytene stage of prophase-I of meiosis, there is breakage and reunion of chromatids, it results in exchange of segments between non-sister shromatids of a bivalent, known as crossing over. It leads to recombination of linked genes/alleles and is a major source of continuous type of genetic variations in sexually reproducing organisms.