Why don't the mother and fetus's blood mix? The fetus can give the mother a disease Hormones from the mother would interfere with the fetus's cellular processes The fetus's digestive system would prevent the blood from mixing The mother's immune system would detect the fetus as an invader

Urgent in guinea pigs, black fur (b) is dominant over white fur (b). cross a heterozygous (hybrid) black guinea pig with a homozygous (purebred) white guinea pig. complete a punnett square, identify the genotype(s), phenotype(s), and probability (% and fraction) that the offspring will be black and white?