Respuesta :
The source of variations is mutation.
Option (a);
EXPLANATION:
Mutation can create a completely different allele of species and this means that the new version of genes will be created with the mutation. Genetic variation refers to the difference in genes within a population.
An organism's DNA decides how that particular species looks or behaves. With the help of mutation, DNA of that organism is affected, thereby creating a different species altogether.
It is an important source of evolution as it affects the way that the body develops or works.
Answer:
Mutation
Explanation:
First, mutations of a gene give way to the different alleles of a gene. Then, crossing over, independent assortment, and random fertilization allow for further variation.
