A student is completing a Punnett square for a trait (X/x) that is autosomal and inherited by the dominant allele. The father does not have it (xx), but the mother does (Xx). If they had two children, a son and a daughter, what would the completed Punnett square look like (i.e., would the son have the trait, would the daughter have the trait)? (1 point)

Question

A student is completing a Punnett square for a trait (X/x) that is autosomal and inherited by the dominant allele. The father does not have it (xx), but the mother does (Xx). If they had two children, a son and a daughter, what would the completed Punnett square look like (i.e., would the son have the trait, would the daughter have the trait)? (1 point)

• One child would inherit the trait and one child would not.
•Both children would inherit the trait.
Each child has a 50% chance of inheriting the trait.
Both children would not inherit the trait

Answer 1

The completed Punnett square for this scenario would be:

| X | x
------------------
x | xx | xx
------------------
X | Xx | Xx

As shown in the Punnett square, there is a 50% chance for each child to inherit the trait. In this case, the daughter would inherit the trait since she has an Xx genotype, while the son would not inherit the trait because he has an xx genotype.