1) All the Weasleys Have Red Hair, Freckles, and More Children Than They Can Afford. Draco

Name ______PER____

Magical Families

1)"All the Weasleys have red hair, freckles, and more children than they can afford." -- Draco Malfoy (Sorcerers Stone, Ch.6)

Freckles (F) are dominant to no freckles (f). If ALL the Weasleys have freckles, what is Ron Weasley’s most likely GENOTYPE for freckles? ______

Hermione Granger does not have freckles. What is her GENOTYPE? ______

Ron and Hermione have children. What is the probability (%) that they will have a child with freckles?

______

Show your work by completing the Punnett!

2) Quiddich ability is controlled by INCOMPLETE DOMINANCE. Superior ability (S) is incompletely dominant to low ability (L’). Average ability players are (SL’).

Harry is obviously a superior player. What is his GENOTYPE? ______Lilly Potter (his mother) was an average player. What was her GENOTYPE? ______

Therefore, James Potter must have least been a(n) ______Quiddich player.

Show your work by completing the Punnett (s) to show Harry’s parents and Harry.

3) “Harry had a thin face, knobby knees, black hair, and brilliant green eyes.” (Sorcerer’s Stone, Ch.1)

Lilly Potter’s eyes were brilliant green and almond-shaped, like those of her only son (Order of the Phoenix, pg 28).

Eye brilliance is an X-linked trait. Dull eyes (XB) are dominant to brilliant eyes (Xb).

What is Harry’s genotype: ______? Lilly’s genotype: ______?

James Potter had dull eyes. What was his genotype ______.

Show how Harry inherited Brilliant eyes by completing the Punnett square:

Let’s say James and Lilly had a daughter, Harriet. What was her probability (%) of inheriting brilliant eyes? (Hint: Use the Punnett above )______

4) In muggles, blood type has multiple alleles. IA and IB are codominant and i (type O blood) is recessive. Could a muggle with B type blood and a muggle with A type blood ever have a baby with O type blood? ______

Complete the Punnett square to justify your answer:

5) Let’s say that the color of merpeople’s tail is controlled by a codominant gene and the alleles are blue (B) and green (G).

Complete the Punnett to show a cross between two merpeople who have blue-green spotted tails (BG).

genotypic ratio ______

phenotypic ratio ______