In humans, straight thumbs (T) are dominant to hitchhiker's thumb (t). Complete a Punnett square to predict the outcome of a cross between a heterozygous male with a heterozygous female.
Complete the Punnett Square below
(Note: a and b should be for female and cand d should be for male. Also, if there is only one capital letter involved then it should be placed in the first space for that individual)