A) In human’ normal thumb (T) are dominant over hitch-hiker thumb (t). A homozygou normal thumbed female i croed with a male with hitch-hiker thumb. What i the genotype and phenotype ratio of the F1 generation? Of the F2 generation?


b) In guinea pig’ black fur (B) i dominant over white fur (b). Short hair (S) i dominant over long hair (). If heterozygou female i croed with a guinea pig with white and heterozygou hort fur, what will be the phenotype ratio of the F1 generation?