Question

Tony Stark (AKA Ironman) fell in love with his assistant Pepper Potts. Ironman doesn’t have freckles. Pepper does. Pepper is homozygous dominant. Having freckles is dominant to not having freckles. What is the % chance of having freckles?

Answer 1

To determine the percentage chance of Pepper Potts and Tony Stark's children having freckles, we first need to clarify the genetics involved.

1. **Freckles** (F) are dominant, and **no freckles** (f) are recessive. Since Pepper is **homozygous dominant**, her genotype is **FF** (having two dominant alleles for freckles).

2. **Tony Stark**, as stated, does not have freckles, which means his genotype is **ff** (having two recessive alleles for no freckles).

Next, we'll set up a Punnett square to determine the possible genotypes of their children:

- Parent 1 (Pepper): FF
- Parent 2 (Tony): ff

The cross would look like this:

\[
\begin{array}{c|c|c}
& F & F \\
\hline
f & Ff & Ff \\
\hline
f & Ff & Ff \\
\end{array}
\]

From the Punnett square, we see that all offspring (100%) will have the genotype **Ff**. Since having freckles (F) is dominant, all children will exhibit freckles.

Therefore, the **percentage chance of their children having freckles is 100%.**