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Biology, 08.10.2020 01:01, anaroles04
You are the proud owner of a purebred herd of Pietrain pigs. Pietrain is a lean breed of pigs, but it has a high frequency of Porcine Stress Syndrome (PSS). PSS has a major locus that controls its presence. There may be several modifier loci that affect the degree of PSS, they only have an effect if the PSS allele is present. The pigs can be screened for the presence of the allele by exposure to halothane gas. Stress susceptible pigs become rigid. There is now also a DNA marker to test for the PSS gene. Genetic Model HH = normal Hh = normal hh = exhibit PSS (react to Halothane 1 pts a) You test 100 random pigs in your herd for the PSS gene. 10 of them react to the gas What are the allelic frequencies in you herd? p =frequency of H = q = frequency of h =
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You are the proud owner of a purebred herd of Pietrain pigs. Pietrain is a lean breed of pigs, but i...
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