Question

A student is completing a Punnett square for a trait (T/t) that is autosomal and inherited by the dominant allele. The father does not have the trait (tt) but the mother does (Tt). 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)
Responses

Each child would have a 100% chance of inheriting the trait.
Each child would have a 100% chance of inheriting the trait.

Each child would have a 0% chance of inheriting the trait.
Each child would have a 0% chance of inheriting the trait.

The son would inherit the trait and the daughter would not.
The son would inherit the trait and the daughter would not.

Each child has a 50% chance of inheriting the trait.
Each child has a 50% chance of inheriting the trait.

Answer 1

Punnett square:

t t
-----------
T | Tt Tt
t | tt tt

Genotypes: 2 Tt (have the trait) and 2 tt (do not). So each child independently has a 50% chance of inheriting the dominant trait.