Q1. A cross between a short-tailed mouse and a long-tailed mouse yields all short-tailed mice. Crosses among the F1 yield an F2 of 48 short-tailed mice and 22 long-tailed mice. Recommend a model (as in diagram the cross) to describe these results. Q2. The objective of the letter is to […]

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 […]