BIO305_F04_Exam2_KEY

BIO305_F04_Exam2_KEY - Bio305 Genetics Exam II, Fall 2004...

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Bio305 Genetics Exam II, Fall 2004 Name________________________ 1 (1) c (11) a (2) e (12) d (3) c (13) h (4) f (14) a (5) b (15) e (6) g (16) d (7) a (17) f (8) b (18) e (9) g (19) b (10) d (20) g 21. The Hopi, Zuni, and some other Southwest American Indians have a relatively high frequency of albinism resulting from homozygosity for a autosomal recessive allele, a . A normally pigmented man and a normally pigmented woman, each of whom has one albino parent, have two children. What is the probability that at least one of the two children is albino? ANSWER: The probability that a child is not albino is ¾. The probability that neither child is albino is (3/4)(3/4)=9/16. The probability that at least one child is albino is 1-(9/16)=7/16. 22. From the F2 generation of a cross between mouse genotypes AA × aa , one male progeny of genotype A named LAZY was chosen and mated with an aa female. All of the progeny in the resulting litter were A . From this result, can you reject the null hypothesis that LAZY’s genotype is
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This note was uploaded on 12/12/2010 for the course BIOL 305 taught by Professor Zhang during the Fall '10 term at University of Michigan.

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BIO305_F04_Exam2_KEY - Bio305 Genetics Exam II, Fall 2004...

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