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