Question

Which is the source of variations in a population of organisms? * changes in environment changes in genes the interaction of individuals with an environment the interaction of genes with an environment

Answer 1

Answer:

changes in genes

Explanation:

The correct answer would be changes in genes.

Variation refers to differences among living organisms of the same species. Variation in a population can be from 3 sources:

• mutation
• recombination
• genetic drifts

A mutation refers to a sudden change in the DNA sequence of a gene. When a gene changes, new alleles are introduced into the gene pool and this creates variation within the population.

Recombination of genes arises from random mating/fertilization during sexual reproduction. Gamete formation results in gene recombination.

Genetic drifts refer to the changes to the alleles of the gene pool as a result of chance events. These changes further introduce variation into the population.

Hence, the correct answer among the options is changes in genes, also known as mutation.