NEET BIOLOGY

Detailed explanation-1: -The points of attachment between non-sister chromatids of two homologous chromosomes are called chiasmata. They are the sites of previous crossing over where synaptonemal complex persists.

Detailed explanation-2: -What is the point of crossing over between two homologous chromosomes called? A. Centromere.

Detailed explanation-3: -The chiasma is a structure that forms between a pair of homologous chromosomes by crossover recombination and physically links the homologous chromosomes during meiosis.

Detailed explanation-4: -Chiasma refers to structures formed between a pair of homologous chromosomes by cross recombination. It physically links homologous chromosomes during meiosis. In other words, Chiasma is the point of contact between two non-sister chromosomes belonging to the homologous chromosomes.

Detailed explanation-5: -chiasmata) is the point of contact, the physical link, between two (non-sister) chromatids belonging to homologous chromosomes. At a given chiasma, an exchange of genetic material can occur between both chromatids, what is called a chromosomal crossover, but this is much more frequent during meiosis than mitosis.