Question

Most genetic variation in a population is generated by

mutation.
gene flow.
genetic drift.
none of the above

Answer 1

the answer is mutation

Answer 2

Mutation.

Step-by-step explanation:

Genetic variation in a population is caused by Mutation , recombination between homologous chromosomes (during meiosis), random fertilization and random mating.

Mutation: Mutation is a change that occur in our nucleotide sequences of the genome of the organism, either due to the results of the environmental factors ( UV lights) or mistakes when the DNA is copied. There are 3 types of DNA mutation present :

1) Deletions

2) Insertions

3) Base Substitutions