Punnett Squares
Word Problems
Vocabulary
Random
Pedigrees
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 possibilities for their children's genotypes?
What is GG, GG, Gg, Gg
100
___________ is the passing down of traits from one generation to the next.
What is Heredity.
100
Hh, Zz, Xx. Each of these are _______________.
What is heterozygous.
100
Males are shown as _____ and females are shown as ________
Squares, Circles
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
What is the genotype of the affected square if the trait is recessive?
rr
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
What are the genotypes of the affected individuals parents?
Rr and Rr
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
__________________ is simply the expression of the genotype. It is how the trait is expressed (ie. dark hair, tall, big lips, etc.)
What is phenotype
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
What are the genotypes of the affected individuals siblings?
R?
500
Two flies produce 62 offspring with curly wings, and 20 flies with normal wings. What are the genotypes and phenotypes of the parents?
What is Ww and Ww
500
In flowers, the genotype PP gives red flowers and the genotype pp gives white flowers. If these flowers show incomplete dominance, than the heterozygous phenotype should be...
pink
500
What is the word to describe the type of inheritance where BOTH alleles contribute equally to the phenotype (neither masks the other).
Provide an example!
What is codominance.
500
Draw a punnett square that shows the results of a type O mother and a type AB father.
What are the possible genotypes and phenotypes of the offspring?
IAi- type A
IBi- type B
500
Is this tracking an autosomal recessive or dominant trait?
recessive