A Restriction-Fragment Length Polymorphism at a Site in the X

question 165

Multiple Choice

A restriction-fragment length polymorphism at a site in the X chromosome has three alleles, A₁, A₂, and A₃. The gel below is the DNA fingerprint for two prospective parents (Mo and Fa) as well as DNA types that may (or may not) correspond to their possible offspring. What are the possible phenotypes of sons from this mating?

• A)M and H
• B)H and K
• C)H and L
• D)K and L
• E)K and Q

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