GeneticsProblems3 - Name _ Period _ AP Biology Date _...

Name _____________________________ Period _________
AP Biology Date ______________________
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? ________________H h _______________________ c. What is the genotype of the father? ____________________cc ____________________ d. What gametes can he produce? ______________________h ___________________ 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.
3. What is the probability of getting the gamete ( ab ) from each of the following parents?
a. Aabb __________________________________50%______________________________
b. aaBb _______________________________50% _________________________________
c. AaBb _________________________________25% _______________________________
d. AABb __________________________0%______________________________________
e. AAbb _________________________0%_______________________________________