Question

Is DNA recombination an advantage or disadvantage?

Answer 1

Genetic recombination:

1. It is the rearrangement of the sequence of DNA.
2. It occurs during meiosis when gamete formation occurs.
3. During the pachytene stage of prophase I parts of homologous chromosomes are exchanged between non-sister chromatids.
4. This process is known as crossing over.
5. It causes variation due to new allele combinations.
6. Variations are differences in the phenotypic or genetic make-up of different organisms.
7. Variations result from recombination during the creation of gametes, mutation, or environmental influences.
8. Some of these variations are beneficial and lead to better adaptation.

As a result, recombination is beneficial and is an advantage.