Now that you have had a chance to familiarize yourself with a pedigree chart, you will now apply what you
have learned about genetics in the construction of pedigrees for
the characters in the "Harry Potter" series.
Muggle or Magic: A Human Pedigree Activity
Assume that non-magical ability is dominant (M) and magical ability is recessive (m). This would explain
why we're not all witches and wizards
(unfortunately). A person without any magical abilities is also known
as a muggle. Use the key below to answer the
questions.
Female Muggle
Male Muggle
Female Witch
Male Wizard
Carrier Female
Muggle
Male Muggle
Carrier
1. If Mr. and Mrs. Weasley are a wizard and a witch, what are their genotypes?
Mr. Weasley,
Mrs. Weasley
2. What must be the genotype of Mr. and Mrs. Weasley's children? (Bill, Charlie, Percy, Fred; George,
Ron, and Ginny)?
3. Draw a pedigree for the Weasley family below. Use shading to indicate genotype. Also, write the
names and genotypes below each of the circles or squares.
4. Now let's look at Hermione Granger's family. Hermione is a witch but her parents are both muggles.
What are the genotypes for the three members of the Granger family?
Mom
Dad
Hermione
5. Based on the above information, is Malfoy correct in calling Hermione a Mudblood? (that term would
imply that she is mixed or heterozygous for magical ability)