Question

for a girl to have an x linked recessive trait, she must have 2 recessive alleles.
true
false

Explanation:

In X - linked recessive inheritance, girls have two X chromosomes. For a recessive trait to be expressed in a girl, both X chromosomes must carry the recessive allele (since if one X has a dominant allele, it will mask the recessive one). So a girl must have 2 recessive alleles to show an X - linked recessive trait.

Answer:

True