Q1. When patients who are receiving glucocorticoid therapy (for in case, with prednisone) need to stop taking it, the doctor will prescribe a series of doses of tapering size to regularly lower the dose rather than suddenly stop it. Explain this dosage strategy in terms of the negative feedback control […]

Test Problem Set: 1. Generate a genetic system of: a) inactivation b) transfer  of any E. coli. gene selected by Dr. Roberts, and using transduction Imagine Dr. Roberts telling you: “Student, I need to inactive gene X of E. coli using transduction” or “I need to transfer the gene X […]

If a recessive lethal allele has a frequency of 0.050 in newly formed zygotes in one generation, and the locus is in Hardy-Weinberg equilibrium, what will be the allele frequency and the genotype frequencies at this locus at the beginning of the next generation?Answer: q=0.048; p2=0.9071, 2pq=0.0907, q2=0.0023 Calculate these […]

You want to study the effect of a mutation in your favorite gene in a cell. You do not plan to purify the gene product, just look at the mutation in vivo. What of the following would be a the best choice of a cloning vector? a. a vector that […]