Which item has the greatest effect on variation

mutation

agouti gene

gene shape

cell membrane structuire

A mutation refers to a natural phenomenon in which the sequence of DNA is modified in a living species. Although, genetic variation is the modification in both the genes and alleles, both throughout and amongst the population.

The mutations are associated with genetic variation as mutations are modifications in DNA. It only takes a single mutation to produce a huge influence, additionally, resulting in an evolutionary modification, which is based on the gathering of various mutations.