In bacteria, which protein is required for ribosomal translocation?

a. EF-Tu
b. eIF2
c. IF-2
d. EF-Ts
e. EF-G


Ans: e

Biology & Microbiology

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Refer to Figure 53-5. The survivorship curve for elephants would be represented by the curve labeled:


a. A
b. B
c. C
d. Either A or C. It would depend upon the species.
e. Elephant populations would be better represented by a curve falling between A and B.

Biology & Microbiology

Which of the following is a function of the myelin sheath?

Increases the rate of conduction of a nerve impulse Moves sodium and potassium ions by active transport Protects the dendrites of motor neurons All of the above

Biology & Microbiology

Human damage to Earth’s ecosystem and biodiversity will likely decrease the planet’s human:

a. age structure. b. agricultural advancements. c. potential for technological innovation. d. carrying capacity.

Biology & Microbiology

Your skeletal muscles might make a lot of these fast contractions when you are cold:________

Fill in the blank(s) with correct word

Biology & Microbiology