[Answer] The original source of all genetic variation is _____.

Answer: mutation
The original source of all genetic variation is _____.
Genetic variation is the difference in DNA among individuals or the differences between populations. There are multiple sources of genetic variation including mutation and genetic recombination. The mutation is the ultimate source of genetic variation but mechanisms such as sexual reproduction and genetic drift contribute to it as well.
Mutation is the ultimate source of all genetic variation providing the raw material on which evolutionary forces such as natural selection can act. Mutation can result in many different types of change in sequences. Mutations in genes can have no effect alter the product of a gene or prevent the gene from functioning properly or completely.
Genetic variation – Wikipedia
Introgression – Wikipedia
Genetic variation – Wikipedia
The human mitochondrial DNA. Human genetic variation is the genetic differences in and among populations. There may be multiple variants of any given gene in the human population ( alleles ) a situation called polymorphism . No two humans are genetically identical.
A genetic marker is a gene or DNA sequence with a known location on a chromosome that can be used to identify individuals or species.It can be described as a variation (which may arise due to mutation or alteration in the genomic loci) that …

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