A man whose blood group is A and a woman whose blood group is B have a son whose blood group is O. What are their genotypes? What is the probability of the couple's next child having blood group B?

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems