say all animals had the exact same genes,then on one of the said animals one of the gene mutates and is now essentially a totally different gene.when they reproduce the gene will be passed on and then there are a wider range of genes.
Genotypic variation is caused by mutation. Phenotypic variation can be caused by mutation, which gives rise to different alleles, or it can be caused by environmental factors.
Sexual Reproduction Genetic mutation
mutation
mutation
Natural selection can only work on genetic variation that already exists. So mutation comes first, then natural selection.
A large population increases genetics variation. Mutation will also increase genetics variation.
Natural Selection.
Generally, mutation.
mutation is an alteration in the nucleotide sequence of a gene whereas variation is any difference between individuals of a particular species.
Genotypic variation is caused by mutation. Phenotypic variation can be caused by mutation, which gives rise to different alleles, or it can be caused by environmental factors.
fertilization
variation is difference between genes and trait among individual* organism within population. mutation is change in genetic instruction I hope it helps
Basic source of variation in all organisms is mutation .
random changes or variation in a DNA sequence
Mutation and sexual recombination.
The two main sources of genetic variation are sexual reproduction, and mutation. Sexual reproduction is more common.
everything:)