Punnett Squares
Word Problems
Vocabulary
Random
Class Notes
100
Complete a punnet square for TT and tt.
What is Tt, Tt, Tt, Tt
100

Jimmy has a big nose. His genotype is GG. Sally also has a big nose. Her genotype is Gg. What are the probabilities (%) for their children's genotypes?

What is 50% GG and 50% Gg

100

Number of pairs of chromosomes 

What is 23

100
Hh, Zz, Xx. Each of these are _______________.
What is heterozygous.
100
The method we use today to predict the traits of offspring is ________________ .
What is the Punnett Square.
200
Complete a Punnett square for Gg and Gg.
What is GG, Gg, Gg, gg
200
Jared is homozygous for brown hair. His wife is homozygous for blonde hair. Brown hair is dominant to blonde hair. What are the possible genotypes for their children?
What is Bb, Bb, Bb, Bb.
200
A pair of alleles that are the same are called __________________.
What is homozygous.
200
HH, TT, zz. Each of these are ______________________.
What is homozygous.
200
Capital letters are always represented by the _____________ allele, not the recessive allele.
What is dominant.
300
Complete a Punnett square someone who is heterozygous for tall and for someone who is homozygous for short.
What is Tt, Tt, tt, tt
300
Mike is heterozygous for brown eyes. His wife has blue eyes. What percentage of their children will most likely have brown eyes? What percentage will most likely have blue eyes?
What is 50% brown and 50% blue eyes?
300
A pair of alleles that are different are called ____________________.
What is heterozygous.
300
Jim and Jane are both heterozygous for being tall. What are the chances that they will have a short child?
What is 25% chance.
300
A _______________ trait is a trait that is expressed or shown.
What is dominant.
400
Complete a Punnett square for someone who is Homozygous for green eyes and someone who has blue eyes. Green is dominant over blue.
What is Gg, Gg, Gg, Gg.
400
Tim and Jenny both have dark skin, but each of them carry a recessive trait for light skin. What are the chances that their children will have dark skin? Light skin?
What is 75% dark skin and 25% light skin.
400
___________________ describes a pair of alleles and is represented by letters such as Tt or TT.
What is genotype.
400
GG, Gg, Gg, gg. Green eyes are dominant to blue eyes. What percent have green eyes? What percent have blue eyes?
What is 75% and 25%.
400
A ______________ trait is a trait that is hidden by the dominant gene.
What is recessive.
500
The four answers for a Punnett square are Zz, Zz, zz, zz. What are the genotypes for the parents?
What is Zz and zz.
500

Two red flowers are bred and produce a white flower  What is the genotype of the red flowers?

R = Dominant

r = recessive

What is Rr

500

__________________ is simply the expression of the genotype. It is how the trait is expressed (ie. dark hair, tall, red flowers, etc.)

What is phenotype.

500
Write a word problem that will have the following results: The children have a 50% chance of having straight teeth and a 50% chance of having crooked teeth.
What is....
500

What is the name of the monk and scientist who created the foundational ideas of genetics and heredity?

What is Gregor Mendel.

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