GeneticsProblems3.pdf - Name: Stacy Ramirez-Llamas AP...

Name: Stacy Ramirez-Llamas Period: 4-5
AP Biology
GENETICS PRACTICE 3: PROBABILITY PRACTICE
1. In humans, curly hair is dominant over straight hair. A woman heterozygous for hair curl
marries a man with straight hair and they have children.
b. What gametes can she produce?
c. What is the genotype of the father? hh
d. What gametes can he produce?
e. What is the probability that the 1st child will have curly hair? 50% f. What is the probability that the 2nd child will have curly hair? 50%
2. List all the gametes that are possible with each of the following genotypes.
b. AaBB AB and aB e. AAbb Ab
ab
3. What is the probability of getting the gamete ( ab ) from each of the following parents?
b. aaBb 50% c. AaBb 25%
d. AABb
e. AAbb
4. In a certain strain of mice, black coat (B) is dominant over white coat (b). Describe what you