What exactly are alleles? What do they do? How are they related to chromosomes? How are they related to genes?

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Punnett
Squares
Genetic
Vocabulary
Word
Problems
Fun Stuff
(unlocked once
every 3 correct
answers)
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5. $100
Cross Rr with rr.
% of RR:
% of Rr:
% of rr:
RR: 0%, Rr: 50%, rr: 50%

6. $100
The genetic code of an organism.
Consists of two alleles.
Genotype

7. $100
Hair on the knuckles is recessive.
Gertrude has hair on her knuckles.
She marries Gregor, who is homozygous
dominant for no hair.
% of kids with hair:
% of kids with no hair:
0% have hair. 100% do not have hair.

8. $100
“No more rhymes, now, I mean it!”
“Does anybody want a peanut?”
What movie are these quotes from?
The Princess Bride

9. $200
BB crossed with bb.
% of BB:
% of Bb:
% of bb:
BB: 0%, Bb: 100%, bb: 0%

10. $200
Physical expression of the genetic code.
(This is what the organism looks like)
Phenotype

11. $200
Greta has brown eyes, a dominant trait.
Her daughter, Griselda, has blue
eyes, a recessive trait.
What is the father’s genotype and phenotype?
bb, blue eyes.

12. $200
What is the first thing seen
at the beginning of all of the Star Wars Movies?
A long time ago in a galaxy far, far away...

13. $300
25% of the F1 generation of
pea plants are homozygous
dominant for the tall trait.
What is the genotype and phenotype
of the parent (P) generation?
Tt, Tall
Advance to Final Jeopardy

14. $300
Who was the “Father of
Genetics,” and what was his
job?
Gregor Mendel, Monk
Advance to Final Jeopardy

15. $300
Yoda has long ears, a dominant trait.
His father had long ears as well.
His mother had long ears, too.
Explain why Yoda’s genotype could
be homozygous OR heterozygous.
His mom could be Ll, but given Yoda the L. Same with
the father.
Advance to Final Jeopardy

16. $300
How many horns does
Darth Maul have
on his pretty head?
Ten
Advance to Final Jeopardy

17. $400
If a pea plant has the genotype TT,
what are the possible genotypes of its parent?
Show punnett squares proving your answers.
TT, or Tt.
Advance to Final Jeopardy

18. $400
What does the word
“Homozygous” mean?
The same alleles or letters – example: BB or bb NOT Bb
Advance to Final Jeopardy

19. $400
Clarence has extra long pinky fingers
(a recessive trait), and is married to Clarita,
who has normal pinky fingers. They have
16 children, 9 of whom have normal fingers.
What is Clarita’s genotype? Prove it with a
Punnett Square!
Pp or heterozygous.
Advance to Final Jeopardy

20. $400
Does Dora the Explorer’s mother have the same
color eyes as Dora? What color?
Advance to Final Jeopardy
Yes - brown

21. $500
25%
Advance to Final Jeopardy
Cross a homozygous dominant tall pea
plant with a homozygous recessive short
pea plant.
Now cross all of the expected offspring
of the F1 generation.
What % of the F2 generation are
Homozygous tall?

22. $500
What does the word
“phenotype” mean?
Physical expression of the genetic code.
Advance to Final Jeopardy

23. $500
Mom and dad both have brown
eyes, all their kids have brown
eyes, and all the kids’ kids have
brown eyes.
What are mom and dad’s
genotypes?
Homozygous dominant for brown - BB
Advance to Final Jeopardy

24. $500
Who did Han Solo owe
a lot of money to?
Jabba the Hutt
Advance to Final Jeopardy Advance to Double Jeopardy

26. Final Jeopardy!
What is the difference between
co-dominance and incomplete
dominance?
Co-dominance Incomplete Dominance

27. Co-dominance Incomplete Dominance
Both genes are fully
expressed at the
same time – example:
white and red spots
on a flower petal
The dominant gene
isn’t strong enough
to completely
overpower the
recessive gene –
there is a blend of
the two – example:
pink petals