? 1. Как возникали расы и какие условия способствовали их
образованию?
2. Как формириются сошиал о по
Блог
те отсоno onant

{r]{y}     {r]{y}

{y}{r .     {r}{y}

explanation:

"do a testcross with a homozygous recessive plant."

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).