Question

What is crossing over?

Answer 1

Crossing over

The exchange of genetic material or chromosomes segment between non-sister chromatids in meiosis is known as crossing over. This occurs between homologous regions of matching chromosomes and the interchange of homologous chromosomes.

Significance

1. Crossing over plays an essential role in process of evolution.
2. Its frequency helps in the construction of genetic maps.
3. It produces a new combination of genes.