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

Question 23

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 girls who have the same parents. What is the genotype of the mother? Of the father? A restriction-fragment length polymorphism at a site in the X chromosome has three alleles, A<sub>1</sub>, A<sub>2</sub>, and A<sub>3</sub>. The gel below is the DNA fingerprint for two girls who have the same parents. What is the genotype of the mother? Of the father? A) A<sub>1</sub>/A<sub>2</sub>; A<sub>3</sub> B) A<sub>1</sub>/A<sub>3</sub>; A<sub>2</sub> C) A<sub>2</sub>/A<sub>3</sub>; A<sub>1</sub> D) A<sub>1</sub>/A<sub>3</sub>; A<sub>3</sub> E) A<sub>1</sub>/A<sub>3</sub>; A<sub>1</sub>


A) A1/A2; A3
B) A1/A3; A2
C) A2/A3; A1
D) A1/A3; A3
E) A1/A3; A1

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