Question

Which two processes are the primary sources of genetic variation?

mitosis and fertilization
synapsis and disjunction
mutation and recombination
overpopulation and reproduction

Answer 1

mutation and recombination

Step-by-step explanation:

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).