Which enzyme is responsible for synthesizing an RNA strand from a DNA template strand?

a. RNA polymerase
b. RNA ligase
c. DNA ligase
d. DNA polymerase


a. RNA polymerase

Biology & Microbiology

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Which organisms cause "red tides?"

a. bacteria. b. cyanobacteria. c. euglenoids. d. dinoflagellates.

Biology & Microbiology

Individuals with ____________________ are extremely sensitive to sunlight and develop skin cancer at a rate 1000

times above normal. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

In males, the primary source of estrogens is the ________

A) hypothalamus B) heart C) adrenal cortex D) ovaries

Biology & Microbiology

Because oxygen is more electronegative than hydrogen, the water molecule is:

A. ionic. B. hydrophilic. C. hydrophobic. D. nonpolar. E. polar.

Biology & Microbiology