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

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.

$\textcolor{w h i t e}{a a a a a}$A $\textcolor{w h i t e}{a a a a a}$B

o$\textcolor{w h i t e}{a a a a}$Ao$\textcolor{w h i t e}{a a a a}$Bo

o$\textcolor{w h i t e}{a a a a}$Ao$\textcolor{w h i t e}{a a a a}$Bo