Ergo Proxy Posted March 19, 2010 Share Posted March 19, 2010 Hi, I would really appreciate someone helping me out with this problem or at least showing me how to go about calculating it. Thank you! ---------------------------------------------------------------------------------- Q) Suppose there is a gene with two alleles D and d in Hardy-Weinberg Equilibrium. Further suppose the d allele has a frequency of 0.4 and causes trait Y in a recessive fashion. a) What is the prevalence of individuals without trait Y? b) What is the probability that two individuals with trait Y will mate (given the assumptions of Hardy-Weinberg equilibrium hold)? c) What is the probability that an offspring of the above mating will not have trait Y? d) Suppose two individuals – who do not have trait Y themselves but both have offspring from previous marriages that do have the trait – mate and have 2 children. What is the probability that both children have trait Y? ---------------------------------------------------------------------------------- Link to comment Share on other sites More sharing options...
dttom Posted March 24, 2010 Share Posted March 24, 2010 a) that mean those which are not double recessive, and you got the allele frequency for d, you should be able to calculate that. b and c should be figured out once you got a). d) so you need to know the genotype of the parents. Link to comment Share on other sites More sharing options...
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