What is the chance that a man with type ab blood

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Reference no: EM133569891

Assignment:

1. A cross between a short-tailed mouse and a long-tailed mouse yields all short-tailed mice. Crosses among the F1 yield an F2 of 64 short-tailed mice and 22 long-tailed mice. Propose a model (e.g., diagram the cross) to explain these results.

2. A hypothetical human trait is controlled by a single gene locus. Four alleles have been identified: a, b, c, and d. Alleles a, b, and c are all codominant; allele d is recessive to all other alleles.

a. How many phenotypes are possible?

b. How many genotypes are possible?

3. What is the chance that a man with type AB blood and a woman with type A blood whose mother is type O can produce a child that is:

a. type A

b. type AB

c. type O

d. type B

4. Hemophilia is an X-linked recessive disorder. A normal woman whose father was hemophiliac marries a normal man. They have a hemophilic son. The man claims his wife has been unfaithful. If you were the judge, how would you rule and why?

5. A cross between a red-eyed fruit-fly and a white-eyed fruit-fly produced an F1 with all bar-eyed fruit flies. How are these phenotypes inherited?

Reference no: EM133569891

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