Question

the importance of synapsis and the formation of chiasmata is that​

Answer 1

Answer:

Function of Synapsis

This is a key task during meiosis, as this is how the genetic information in each gamete is reduced. Secondly, it allows homologous chromosomes to exchange information through crossing over. Crossing over occurs when similar portions of homologous chromosomes exchange position.

Answer 2

Synapsis and subsequent formation of chiasmata help in the exchange of genetic material between homologous chromosomes and thereby aid recombination.

• Synapsis is the pairing of homologous chromosomes during prophase I of meiosis.

The resultant structure is called bivalent or tetrad.

• They are connected during synapsis by the synaptonemal complex which is a protein-RNA complex.

• Crossing over between the homologous chromosomes leads to the formation of chiasmata. It is the point of contact or link between the non-sister chromatids of the homologous chromosomes.

• This facilitates the exchange of genetic material between the unrelated chromatids so as to bring about recombination.