<span>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)</span>
The time when you can't see any of the moon at all is called "New Moon".
14.77 days later, the phase is "Full Moon".
Yes , it does ? i mean i assume man i dont know much i need more to your question
