NEET BIOLOGY

Detailed explanation-1: -The Genetic Variation in a Population Is Caused by Multiple Factors. Genetic variation describes naturally occurring genetic differences among individuals of the same species. This variation permits flexibility and survival of a population in the face of changing environmental circumstances.

Detailed explanation-2: -Genetic variation is the presence of differences in sequences of genes between individual organisms of a species. It enables natural selection, one of the primary forces driving the evolution of life.

Detailed explanation-3: -Genetic variations can arise from gene variants (also called mutations) or from a normal process in which genetic material is rearranged as a cell is getting ready to divide (known as genetic recombination). Genetic variations that alter gene activity or protein function can introduce different traits in an organism.

Detailed explanation-4: -The main distinction between genetic diversity and species diversity is that genetic diversity refers to variances in DNA across individuals of the same species, whereas species diversity refers to the number of species in a given area. The variety of ecosystems in a given area is referred to as ecological diversity.

Detailed explanation-5: -Individuals of a species have similar characteristics but they are rarely identical, the difference between them is called variation. Genetic variation is a result of subtle differences in our DNA?.