Which type of microorganism shows even growth throughout thioglycolate broth?
a. obligate aerobe
b. facultative aerobe
c. aerotolerant anaerobe
d. microaerophile
Answer: C
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The amplification of recombinant plasmids occurs by:
a. the growth of the plasmid DNA. b. DNA replication of plasmids outside a host cell. c. the process of growth and division of the host cell. d. transformation of bacterial cells. e. the polymerase chain reaction
The two erythrocyte proteins, glycophorin and band 3, are examples of
a. peripheral proteins. b. transmembrane proteins. c. cytoskeletal proteins. d. ?-barrel proteins.
Two sea urchin proteins were named cyclin A and B because, during the embryonic cell cycle, they were periodically
a. activated and inactivated by phosphorylation and dephosphorylation. b. synthesized and degraded. c. bound and released by another protein. d. ubiquitylated and non-ubiquitylated.
The force that moves material through phloem is provided by:
A) active transport. B) transpiration. C) gravity. D) osmosis.