Consider the gene for hairline, which has two alleles, one for straight hairline and one for a widow’s peak hairline. if a woman has both alleles in her body cells, what will her eggs contain?

There is has a chance for both. Hope this helps.

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.