LIFE SCIENCE

Detailed explanation-1: -Genetic variation is the difference in DNA sequences between individuals within a population. Variation occurs in germ cells i.e. sperm and egg, and also in somatic (all other) cells.

Detailed explanation-2: -Between any two humans, the amount of genetic variation-biochemical individuality-is about . 1 percent. This means that about one base pair out of every 1, 000 will be different between any two individuals.

Detailed explanation-3: -Genetic variation is the presence of differences in sequences of genes between individual organisms of a species.

Detailed explanation-4: -Genetic variation simply refers to the variation of genomes at the individual level (i.e., between individuals) or at the species level (i.e. between species populations). The variation may result from a mutation; mutations may cause the emergence of mutants or variants.

Detailed explanation-5: -Genetic variation and disease Genetic variants are permanent alterations in an individual’s DNA sequence. These variations may or may not lead to a problem at some point in the central dogma. If they cause a problem, they are known as a pathogenic variant (or, less commonly, a mutation).