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1. A cross is set up involving 5 genes: (assume independentassortment) AaBBCcddEe x AABbccDdEe (a.)    What proportion of the progeny will have thesame genotype as parent 1?(b.)    What proportion of the progeny will have thesame genotype as parent 2?(c.)    What proportion of the progeny will have thesame phenotype as parent […]

Consider the model of Negative Frequency Dependent Selection introduced in Lecture 3; diploid sexual population, one locus, two alleles (A1, A2), freq(A1) = p, freq(A2) = 1-p = q. The population starts with both alleles present and ignore the effects of random genetic drift. HINT: This problem can be efficiently […]

A 40-year old recovering IV drug addict is evaluated for fever, malaise, anorexia, vomiting and jaundice. He also has red bumps on the skin of his lower extremities. He stopped using heroin approximately 6 months ago when he was still homeless and often used dirty needles to satisfy his drug […]

Male cockroaches with mutations that strongly decrease the function of an RTK (receptor tyrosine kinase) called RTKX are oblivious to the charms of their female comrades. This particular RTK binds to a small molecule secreted by sexually mature females. Most males carrying loss-of-function mutations in the gene for Ras protein […]