_GENETICS PRACTICE 2_ PROBABILITY PRACTICE .docx - GENETICS...

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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. a. What is the genotype of the mother?
b. What gametes can she produce?
c. What is the genotype of the father?
d. What gametes can he produce?
e. What is the probability that the 1st child will have curly hair?
f. What is the probability that the 2nd child will have curly hair?
2. List all the gametes that are possible with each of the following genotypes.
b. AaBB ______AB, AB, aB, aB________ e. AAbb _____Ab,Ab,Ab,Ab__________
c. AaBb __AB, Ab, aB, ab_____________ f. aabb _____ab, ab, ab, ab__________ 3. What is the probability of getting the gamete (ab) from each of the following parents?
b. aaBb ___a 2/2, b 1/2, (ab) probability=50%________________________________ c. AaBb ____a 1/2, b 1/2, (ab) probability=25%__________________________ d. AABb
4.

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