Jessica's mother has the blood type AB and her father has the blood type O. Which blood type could Jessica have?

1 Answer
Sep 10, 2016

Jessica could have type A or type B.

Explanation:

Each parent donates one of the ABO alleles to Jessica. Her mom donates either A or B. Her dad donates only o. Jessica will be either Ao or Bo, which correspond to type A and type B.

color(white)(aaaaa)A color(white)(aaaaa)B

ocolor(white)(aaaa)Aocolor(white)(aaaa)Bo

ocolor(white)(aaaa)Aocolor(white)(aaaa)Bo