Question

What are the two types of variations?

Answer 1

Genetic Variation:

1. The variation in the genetic constituents of individuals living in a population is called genetic variation.
2. It is necessary for natural selection.
3. Natural selection is the selection process by which certain traits that are advantageous to the changing environment are beneficial for organisms to adapt to evolution.

Two types of variations include genotypic and phenotypic variation.

Genotypic variations:

1. The variation develops due to changes in the genes and chromosomes. These variations are inheritable
2. These variations are usually caused due recombination and mutation.
3. They play an important role in evolution.

Phenotypic variations:

1. The variations develop due to lifestyle changes.
2. These variations are not inherited.
3. These variations do not play any role in evolution.