Whos Your Daddy - Name: Date: ______ Period: _____ - Studocu - Free Printable

- The Leel Family: Both parents are AB (genotype IAIB). Their possible offspring genotypes are IAIA (type A), IAIB (type AB), and IBIB (type B). Baby #2 (AB) and Baby #3 (A) could belong to the Leels. Baby #1 (O) cannot, because neither parent carries the i allele needed for type O.

- The Hayes Family: Mr. Hayes is type O (genotype ii), Mrs. Hayes is type AB (genotype IAIB). Their possible offspring genotypes are IAi (type A) and IBi (type B). Baby #3 (A) could belong to the Hayes. Baby #1 (O) and Baby #2 (AB) cannot, because the O parent can only contribute i alleles, making AB impossible and O only possible if both parents contributed i (which the AB parent cannot).

- The Poole Family: Mr. Poole is type B (could be IBIB or IBi), Mrs. Poole is type O (ii). If Mr. Poole is IBIB, all children will be IBi (type B). If Mr. Poole is IBi, children can be IBi (B) or ii (O). Therefore, Baby #1 (O) could belong to the Pooles only if Mr. Poole is heterozygous (IBi). Baby #3 (A) cannot belong to them, since neither parent has the IA allele. Baby #2 (AB) also cannot belong to them, as neither parent can provide both IA and IB.