Question

How variations are possible in DNA copying?

Answer 1

Answer:

Mutations and recombination are major sources of variation. Mutations are the original source of genetic variation. A mutation is a permanent alteration to a DNA sequence. ... It is only once the error is copied by DNA replication, and fixed in the DNA that it is considered to be a mutation.

Answer 2

Explanation:

Mutations and recombination are major sources of variation. Mutations are the original source of genetic variation. A mutation is a permanent alteration to a DNA sequence. ... It is only once the error is copied by DNA replication, and fixed in the DNA that it is considered to be a mutation.