A bacteriophage is ________

A) a small cloning vector used in humans
B) a large cloning vector used in humans
C) a type of bacterial protein
D) a virus that specifically infects bother viruses
E) a virus that specifically infects bacteria


E

Biology & Microbiology

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When Darwin covered the tip of a grass seedling with metal foil and then illuminated it from one side, what happened to the seedling?

A. It bent away from the directional light. B. It did not respond to the directional light. C. It waved back and forth. D. It wilted and died. E. It grew toward the light, as expected.

Biology & Microbiology

Birds are least likely to be attracted to flowers with

a. yellow petals. b. red petals. c. both red and yellow parts. d. strong attractive scents. e. intense red and yellow patterns on petals.

Biology & Microbiology

Large blood vessels that supply the spongy tissue of

the penis are __________ in an unaroused male. a. vasodilated b. vasoconstricted c. secreting prostaglandins d. volume reservoirs e. inhibiting testosterone secretion

Biology & Microbiology

Plants use ________ and ________ wavelengths of light and reflect the ________ wavelength.

A. green, blue, red B. white, green, blue C. red, blue, green D. white, green, red E. green, red, blue

Biology & Microbiology