genetics notes

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Punnett Squares

Genetic Vocabulary

Word Problems

Fun Stuff (unlocked once every 3 correct

answers)

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$100

Cross Rr with rr.% of RR:% of Rr:% of rr:

RR: 0%, Rr: 50%, rr: 50%

$100

The genetic code of an organism. Consists of two alleles.

Genotype

$100

Hair on the knuckles is recessive.Gertrude has hair on her knuckles.

She marries Gregor, who is homozygousdominant for no hair. % of kids with hair:

% of kids with no hair:

0% have hair. 100% do not have hair.

$100

“No more rhymes, now, I mean it!”“Does anybody want a peanut?”

What movie are these quotes from?

The Princess Bride

$200

BB crossed with bb. % of BB:% of Bb:% of bb:

BB: 0%, Bb: 100%, bb: 0%

$200

Physical expression of the genetic code.

(This is what the organism looks like)

Phenotype

$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.

$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...

$300

25% of the F1 generation ofpea plants are homozygous dominant for the tall trait.

What is the genotype and phenotypeof the parent (P) generation?

Tt, Tall

Advance to Final Jeopardy

$300

Who was the “Father ofGenetics,” and what was his

job?

Gregor Mendel, Monk


$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.


$300

How many horns does Darth Maul have

on his pretty head?

Ten


$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.


$400

What does the word “Homozygous” mean?

The same alleles or letters – example: BB or bb NOT Bb


$400

Clarence has extra long pinky fingers (a recessive trait), and is married to Clarita,

who has normal pinky fingers. They have16 children, 9 of whom have normal fingers.What is Clarita’s genotype? Prove it with a

Punnett Square!

Pp or heterozygous.


$400

Does Dora the Explorer’s mother have the same color eyes as Dora? What color?


Yes - brown

$500

25%


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?

$500

What does the word“phenotype” mean?

Physical expression of the genetic code.


$500

Mom and dad both have browneyes, all their kids have browneyes, and all the kids’ kids have

brown eyes.What are mom and dad’s

genotypes?

Homozygous dominant for brown - BB


$500

Who did Han Solo owe a lot of money to?

Jabba the Hutt

Advance to Final Jeopardy Advance to Double Jeopardy

Final Jeopardy!What is the difference between co-dominance and incomplete

dominance? Co-dominance Incomplete Dominance

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

genetics notes

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