Lab 10 Genetic Problems The Harry Potter Edition PDF

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This is one of the most challenging labs you'll have in biology. It's all about lab procedure 10 in which you learn about genetic material....

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General Biology 1510 Lab 10: Genetic Problems: The Harry Potter Edition BEFORE LAB:

Inherited Physical Traits in Harry Potter "All the Weasleys have red hair, freckles, and more children than they can afford." --Draco Malfoy (Sorcerers Stone, Ch.6) He was almost twice as tall as a normal man and at least five times as wide.(Sorcerer’s Stone, Ch.1) Harry had a thin face, knobby knees, black hair, and bright green eyes.(Sorcerer’s Stone, Ch.1) A pale boy with a pointed face and white-blond hair, Draco greatly resembled his father. His mother was blonde too...(Goblet of Fire, Ch.8) 1. What is a phenotype? What are some phenotypes described in the four excerpts from the Harry Potter books?

2. How is a phenotype related to a genotype?

3. Some traits follow the simple rules of Mendelian inheritance of dominant and recessive genes. Define dominant and recessive.

4. Complex traits follow different patterns of inheritance that may involve multiples genes and other factors. Explain the following patterns of inheritance: a. Incomplete dominance

b. Codominance

c. Multiple alleles

d. Epistasis

This lab is unique in that you will take your quiz at the end of lab. So be sure to ask any questions you have regarding the pre-lab and the in lab genetics problems.

In Lab: (You do NOT need to do these before coming. Just bring the printed sheet. ☺ ) Practice answering the following Genetic Problems. 1. All Weasley children have freckles and red hair. Use a Punnett Square to predict the most likely genotypes of their parents, Molly and Arthur Weasley, for the two traits. Use the following allele possibilities: r= Red hair , R= Brown hair, F = Has Freckles , f = No freckles

2. Harry has dark/brown hair like his father, but his mom had red hair. Using the genotypes of rr, Rr, and RR, what possible genotypes does each of the Potters have?

3. Harry marries Ginny who has red hair. What are possible genotypes of their children’s hair colors?

4. If the dragons in Harry Potter have fire-power alleles F (strong fire) and F’ (no fire) that follow incomplete dominance, what are the phenotypes for the following dragon-fire genotypes? – FF – FF’ – F’F’

5. Hagrid’s father was a wizard and his mother was a giantess. The normal heights for giants and wizards are: Giants = about 20 ft. & Wizard = 5-6 ft. Given that Hagrid is described to be about 12 ft., what type of genetic inheritance may be at work for Hagrid’s height? Why?

6. Hippogriff coats come in many colors, like horse coats; coat color has multiple alleles: –C= chestnut (codominant with other colors) –W= white (codominant with other colors) –B= black (codominant with other colors) Draw a Punnett square for the parents of a red roan (CW) hippogriff. (“Red roan” means it’s covered in both white hairs and chestnut hairs.)

7. Suppose magical ability is governed by a pathway involving two genes. One gene is responsible for the strength of the magical ability (M, strong ability) and one that allows the magical ability to be expressed (E, not expressed). Magical ability comes as strong (MM), average (Mm), and weak (mm). What type of inheritance is this?

8. Give the possible genotype(s) for –Harry (has strong magical ability) –Hermione (has strong magical ability) –Ron has (average magical ability) –Dumbledore has (strong magical ability) –Aunt Petunia has no magical ability –Mr. Filch has weak magical ability

9. Hermione’s possible genotype is MMee, as she has strong magical ability. What are possible genotypes of Hermione’s parents who are Muggles without the ability?

10. Will all of Harry and Ginny’s children have magical ability? Explain your answer using Punnett squares. (Remember both Harry and Ginny have magical ability.)

11. Thank the NIH (National Institute of Health) for the fun idea to look at Harry Potter Genetics. This set of questions was slightly adapted from their Genetics in Harry Potter Lesson....