Question

looking at this pedigree, how many female family members are carriers?

Explanation:

Step1: Identify pedigree carrier rules

For X-linked recessive traits (standard for such pedigrees with affected males and unaffected females as carriers): Unaffected mothers of affected sons are carriers; daughters of affected males are carriers.

Step2: Count female carriers

1. Mother of the top-left affected male (carrier)
2. Mother of the middle affected male (carrier)
3. Daughter of the top-right affected male (carrier)

Answer:

3