Which molecule provides the energy for the assembly of new nucleotides into a DNA strand during DNA replication?

a. ATP
b. the nucleotide itself
c. NADH
d. primers
e. DNA ligase


ANSWER: b

Biology & Microbiology

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In the figure above, which number would designate the biome with the highest variation in annual precipitation?

A) 1 B) 2 C) 3 D) 4

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The type of cellular response to a signal does NOT depend on:

A. the type of receptor being expressed in the cell. B. the type of intracellular signal-transduction proteins being expressed in the cell. C. other signals to which the cell is concurrently responding. D. the type of terminator proteins being expressed in the cell. E. All of these choices are correct.

Biology & Microbiology

Runs through core of osteon, contains blood vessels and nerve fibers.

What will be an ideal response?

Biology & Microbiology

During sporulation in Bacillus subtilis, the response regulator that positively controls many genes needed for sporulation and negatively controls genes not needed during sporulation is ________.

A. SpoOB B. SpoOF C. SpoOC D. SpoOA

Biology & Microbiology