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6. Which of the following is NOT used for the generation of transgenic animals? a. Somatic cell nuclear transfer b. Pronuclear injection c. Embryonic stem cells d. Next-generation sequencing Answer: […]

5. Which of the following statements is NOT a necessary consequence of meiosis? a. Chromosome number remains constant generation after generation. b. Each daughter cell receives the same number and […]

4. Place these steps in temporal order, first to last. 1. Diffusion of neurotransmitter across the synaptic cleft. 2. Binding of neurotransmitter to its receptor. 3. Influx of calcium into […]

3. Which of the following molecules is useful in protein phosphorylation studies? a. α-32P ATP b. β-32P ATP c. γ-32P ATP d. ATP-γ-S γ-32P ATP is the correct answer for […]

2. During growth and division of E. coli, the daughter strand is recognized due to a. Hemimethylation of newly synthesized DNA b. Nicks in newly synthesized DNA c. double stranded […]

1. When antibiotic-sensitive bacteria are spread on a plate containing antibiotic, colonies of resistant bacteria grow. The best explanation for this is: a. the antibiotic is mutagenic b. the antibiotic […]

15. A molecular cage allows the nitrogen of ammonia to become sp2 hybridized (instead of the usual sp3 hybridization). What do you expect the structure of this ammonia molecule to […]

14. What is the correct order of acidity for these compounds? a. (a) < (b) b. (a) = (b) c. (a) > (b) d. It depends on the pH The […]

13. Two equilibria are shown below: The following is true for these equilibria: a. Both (a) and (b) have equal populations of the isomers b. Both (a) and (b) have […]

11. How many chiral carbons does the following structure have when n is even? a. all its carbons are chiral b. n c. n+1 d. n+2 The correct answer is […]