What role is played by the single-strand binding proteins?

a. stabilizing the helix to prevent supercoiling
b. synthesizing RNA primers
c. preventing the helix from reforming
d. polymerizing DNA


c. preventing the helix from reforming

Biology & Microbiology

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Microfilaments are assembled from the protein ____

a. keratin b. myosin c. laminin d. actin e. tubulin

Biology & Microbiology

Which of the following are the most abundant cell type found in most plants?

A) parenchyma cells B) collenchyma cells C) sclerenchyma cells D) food-conducting cells

Biology & Microbiology

In comparing aerobic and anaerobic cellular respiration, how much more effective is aerobic cellular respiration in net energy release? 

A. 18 times (36 ATP:2 ATP) B. 20 times (40 ATP:2 ATP) C. 2 times (4 ATP:2 ATP) D. 17 times (34 ATP:2 ATP)

Biology & Microbiology

The Calvin cycle

A. is a cyclic pathway that produces three-carbon carbohydrates from CO2. B. is a linear pathway that produces three-carbon carbohydrates from CO2. C. is a cyclic pathway that produces ATP and NADPH. D. is a linear pathway that produces ATP and NADPH.

Biology & Microbiology