The researchers who first discovered the mechanism of control of a bacterial gene were:a
Hershey and Chase.
b. Griffith and Avery.
c. Watson and Crick.
d. Jacob and Monod.
e. McClintock and Morgan
D
Biology & Microbiology
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Shrimps, crabs, and lobsters are examples of ____
a. cephalopods b. gastropods c. mollusks d. arachnids e. crustaceans
Biology & Microbiology
The first barrier to invasion is
a. antibody production. b. intact skin and body cavity linings. c. direct attack by white blood cells. d. innate immunity. e. development of memory cells.
Biology & Microbiology
Which term correctly describes yeast?
a. single-celled fungi b. single-celled protists c. multicellular plants d. multicellular fungi
Biology & Microbiology
____ are accessory structures.
A. Petals and sepals B. Pistils and stamen C. Roots and stems D. Xylem and phloem
Biology & Microbiology