What is a form of nuclear division that divides a diploid cell into haploid cells

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?

You sample a population of butterflies and find that 56% are heterozygous at a particular locus. what should be the frequency of the recessive allele in this population?