Essential Genetics 6th Edition by Daniel Hartl

Exercise 6

A modernized version of Mendel's monohybrid cross between true-breeding round (WW) and true-breeding wrinkled (angular) (ww) is shown below. Self-fertilization of the
progeny, what are the expected numbers (a)-(f) of each of the seed-shape and DNA-band phenotypes? (Hint: One or more of the expected numbers could be 0.)