Download Group Members - Ms. Irwin`s Website

Name: ______________________________
Period: _______ Date: _______________
Harry Potter Genetics
For the questions listed below, you must show ALL of your work (on a separate sheet of paper)
in order to prove your answer.
1.) While most people thought that Draco Malfoy would never find a wife that could
tolerate his evil side, he met the woman of his dreams. But what he didn’t know is that she
was a muggle pretending to be a wizard! Even after their first child, Draco was clueless of
her secret because the first born was a wizard just like expected. After his second child was
born, he began to notice that he wasn’t showing any sort of wizardly signs and worried
about the possibility of ruining the Malfoy history of being pure-blood wizards. What was
the genotype of Draco’s wife? Make a punnett square to show their offpring, and show the
ratios for the phenotypes and genotypes.
2.) While spending a summer home with the Dursley’s, Harry met a muggle named Olivia
and they grew very close. Years passed and the two fell in love and had a child. Prior to
having this child, wizardly testing was done and the two found out that they could not have a
child with wizardly traits like their famous father. Harry knew that there was a possibility for
his grandchildren to have the wizardly trait, but what would the genotype of his child’s
husband or wife have to be in order to have a 2/4 chance of being a wizard? Use the space
provided to create any punnett squares necessary to solve the problem and fill in the
genotypes and phenotypes of each individual below.
Olivia:
Harry Potter:
Harry’s child:
Spouse of Harry’s Child
G:
G:
G:
G:
P:
P:
P:
P:
3.) As we know, Mrs. Dursley and Lily Potter are sisters. Lily, as we mentioned earlier, is a
wizard, but Mrs. Dursley lacks the wizardly trait. If this is true, what is the probability for
each genotype if their muggle parents, Mr. and Mrs. Evans, had another child? Use the space
provided to create any punnett squares necessary to solve the problem and fill in the
genotypes and phenotypes of each individual below.
Lilly Potter:
Mrs. Dursley:
Mrs. Evans:
Mr. Evans:
G:
G:
G:
G:
Probabilty for each Genotype: _____MM
P:
P:
P:
P:
_____Mm
______mm
4.) As we know, Herimone Granger is the best at performing the Wingardium Leviosa trait.
Hogwart’s decided to test each student’s spell traits to see which were genetic, and found
that Wingardium Leviosa was one. We also know that Neville Longbottom struggles casting
many of spells. The tests revealed that Neville lacked many of the dominant genes necessary
to be a successful wizard. If Hermione, who is dominant for the Wingardium Leviosa trait
(WW), and Neville had a child, should they worry that their children will lack the trait like
their father?
CHALLENGE QUESTION:
5) Hagrid is a giant on the grounds of Hogwarts. He has dabbled as a caretaker and then
taught some classes on the care of magical creatures. The giant trait is a dominant trait and
his mother was a giant and Hagrid could carry his father up on his shoulders – so dad wasn’t
a giant. He has “fallen” for Madame Maxine, who is a magical giant. Unlike Hagrid,
Madame Maxine can do magic, a recessive trait (mm), which makes Hagrid weak in the
knees. Hagrid was curious to see there was a possibility that their children could also be
giants with the ability to do magic, and after being tested he heard it was possible.
a. What is Hagrid’s genotype? (Use “G” for giant trait and “M” for magic trait)
b. If Hagrid and Maxine had children and all are giants, what is the likely genotype of
Maxine?
c. If some of the kids came out as non giants, then what is the genotype of Maxine?
d. What is the probability of getting the following offspring if Maxine is mmGg?
Giant and wizard:
Normal and wizard:
Giant and not a wizard: