1. Monohybrid Practice Problems
Two mice are both heterozygous for eye color. Determine the genotype and phenotype fractions of their children. E= black eyes e= red eyes

2. Problem # 1 Silkworms C= yellow cocoon c = white cocoon
Parents CC x cc
What is the percent chance of having a heterozygous offspring?

3. Problem # 2
Sleeping Beauty has freckles. Her prince charming is heterozygous for no freckles.
F= no freckles f= freckles
What is the fraction chance of having a child with no freckles?

4. Problem # 3
Sponge Bob Square pants is heterozygous for brown eyes. Sandy is also heterozygous for brown eyes.
B= brown eyes b=blue eyes
List the different fraction probabilities of genotypes for their children.

5. Problem # 4 Daffy Duck is heterozygous for black feathers.
Daisy Duck is homozygous for yellow feathers.
B = Black b = yellow
What is the ratio of black to yellow feathers for their children?

6. Problem #5
A heterozygous tall pea plant is crossed with a homozygous tall pea plant.
T= tall t= short
What percentage of the offspring will be short?

7. Problem # 6
For eye color, brown eyes (B) is dominant over blue eyes (b). A man that has blue eyes marries a woman that is heterozygous for brown eyes.
What is the fraction probability of the possible phenotypes for the children?

8. Problem #7
A man who is heterozygous for being able to roll his tongue marries a woman who is recessive for not rolling her tongue.
T= tongue roller t= non-roller
List all of the genotype and phenotype fraction probabilities for their children.