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1. An enzyme is discovered that selectively shortens telomeres. Its gene is isolated, cloned and transfected into a malignant cell line where it is transcribed and translated. What might happen to the cell line? What happens when a cell expresses telomerase?2. You are experimenting with two strains of bacteria. The […]

Part A: Couple 1 comes into your office. The husband has normal vision; the wife is heterozygous for the color-blindness allele. What percentage of Couple 1’s male offspring will be color blind? What percentage of their female offspring will be color blind?Part B: Couple 2 comes into your office. The […]

Exercise 1: Opposable Thumb Questions A. How many tasks were more difficult to perform without an opposable thumb? How many tasks were easier to perform with an opposable thumb? How many tasks were not impacted by the use of an opposable thumb? B. Which task was the most difficult to […]

You are studying the binding of serine to its receptor protein. The side chain of Ser makes two H-bonds to the receptor, one to the side chain of a Thr and one to a backbone carbonyl of a Lys. You wish to study the importance of these interactions by mutagenesis […]