Question

1. a man who has type b blood (genotype: bb) is married to a woman with type o blood. what blood type will their children have?

Explanation:

Step1: Determine Genotypes and Gametes

The man has genotype \( BB \), so he can only produce gametes with the \( B \) allele. The woman has type O blood, which has the genotype \( OO \), so she can only produce gametes with the \( O \) allele.

Step2: Use Punnett Square

When we cross \( BB \) (man) with \( OO \) (woman), the Punnett square will have all offspring with genotype \( BO \). Since \( B \) is dominant over \( O \), the blood type for \( BO \) is type B.

Answer:

All of their children will have type B blood (genotype \( BO \)).