In chimpanzees, straight fingers are dominant to bent fingers. Complete a punnet square to show the genotypes expected for the following cross: heterozygous straight x homozygous bent
Heterozygous straight: Ss
Homozygous bent: bb
b b
S |Sb Sb
s |sb sb
Therefore, the expected genotypes for the offspring would be: 50% heterozygous straight (Ss) and 50% homozygous bent (bb).