Question

Baby jane has blood type o. given below are the blood types of three couples claiming to be the parents of baby jane. who do you think are the possible parents of baby jane based on their given blood types?

a. couple 1 john and janet. both of them are heterozygous for blood type a.
b. couple 2. eric and rica. eric is homozygous for blood type a and rica has blood type o.
c. couple 3. joe and jossie. joe has blood type o and jossie is homozygous for blood type b.

Answer 1

Based on the blood types, the possible parents of Baby Jane are Eric and Rica. The correct option is (b).

Step-by-step explanation:

Based on the given information, the possible parents of Baby Jane can be determined by analyzing their blood types. Baby Jane has blood type O, which means she has two recessive alleles (ii). From the given couples, we can eliminate couple 1 (John and Janet) because both of them are heterozygous for blood type A (IAi), which means they cannot have a child with blood type O.

We can also eliminate couple 3 (Joe and Jossie) because Joe has blood type O and Jossie is homozygous for blood type B (IBIB), which means they cannot have a child with blood type O. This leaves us with couple 2 (Eric and Rica) as the possible parents of Baby Jane. Eric is homozygous for blood type A (IAIA) and Rica has blood type O (ii), which means they can have a child with blood type O.