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HMB265 Final 2003 015 - 63 In a tropicalhuman population in...

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Unformatted text preview: 63. In a tropicalhuman population in Hardy~Weinberg equilibrium for an autosomal locus determining presence/absence of pigment in the skin, the frequency of albinism (an) is I in 10,000. The frequency of heterozygotes is approximately a) 1/50 b) 1/100 0) i in 1000 d) 1 in 75 e) 1(25 @n a human population, the frequency of gametic types for the MNS system is: 0.20 MS 0.30 Ms 0.10 NS 0.40 NS What is the allelic heterozygosity value? Mg.qu-_O.S 2M0$43H20IS 332i) Msiuszez M*N*1530'3 c)0.50 lNl-S—l‘é'eOS‘ @046 u 2- Mug Wt 2(st 4 ,o i M = 0"?) e) 0.30 65. You are studying an X-linked trait. There are two alleles, one showing complete dominance over the other. In females, 84 percent Show the dominant phenotype. What percentage of the males will show the dominant phenotype, assuming that individuals in this large population mate at random with respect to this trait? a) 84 b) 60 c) 40 d) 36 e) l6 66. If two populations of birds with frequencies of an allele :1 of 0.2 and 0.3 are forced together by unusually high winds, the new frequency ofthe a allele in the combined population will be a) 0.2 b) 0.25 c] 0.3 d} 0.5 e) you can‘t determine the new frequency unless you know the population sizes. Page 16 of 18 ...
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