Problem:
Alleles A and a are on one pair of autosomes, and alleles B and b are on a separate pair of autosomes.
Required:
Question 1: Does crossover between one pair of homologs affect the expected proportions of gamete genotypes? Why or why not?
Question 2: Does crossover between both pairs of chromosomes affect the expected gamete proportions? Why or why not?
Please Explain don't just write the answer.