89.1k views
8 votes
How could our baby be an albino?

Tiffany and Joe have just had a baby and are very surprised to learn that their baby is albino with very pale skin
and hair color. Tiffany's sister has come to see the new baby, so Joe goes out to talk with his sister Vicky.
Did Tiffany have an affair?
Joe is very angry. He tells Vicky, "I think Tiffany had an affair with Frank! He's the only albino we know.
Obviously, Tiffany and I aren't albino, so Frank must be the father."
Luckily, Vicky remembers her high school biology, so she explains, "Two parents with normal skin and hair
color can have an albino baby, if they are heterozygous and carry a recessive allele for albinism."
She draws a Punnett Square to show this. Draw the Punnett Square. Use A for the dominant allele that
results in normal skin and hair color and a for the recessive allele that can result in very pale skin and hair color
Upload an image of your Punnett square.

User Smoyer
by
3.7k points

1 Answer

5 votes

Answer:

If both parents are heterozygous, there is a 1/4, 25%, 0.25 chance that the baby turns out albino.

Step-by-step explanation:

Using A as the dominant allele and a as the recessive allele, I made a quick Punnett Square and attached it below. The outcomes are AA, Aa, Aa, and aa. I hope it helped! :]

How could our baby be an albino? Tiffany and Joe have just had a baby and are very-example-1
User Dietpixel
by
4.6k points