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).
Answer:
I think it is C if I am wrong i am srry
The answer is c. they live in conditions similar to those likely to be found on other planets.
Yes because why a cell goes through mitosis the DNA is an exact replica, there forever having the same mutations
