Which of the following phrases best completes
this sentence: Plasmids, as used as tools in
DNA research, are
a. clones.
b. recombinants.
c. vectors.
d. restriction enzymes.
e. DNA libraries.
C
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Normal microflora are usually found in the blood, lymph, and nervous systems of the body
Indicate whether the statement is true or false.
The ?-jelly roll of the Lpt system functions to
A. help translocate assembled LPS across the outer membrane of the bacterial cell. B. help attach the O-antigen to core oligosaccharide moieties during synthesis of LPS. C. help anchor the newly positioned LPS on the bacterial cell surface. D. help hide lipid A from the hydrophilic periplasm during LPS transport to the membrane.
How many turns of the Krebs cycle (also called the citric acid cycle) are needed to fully breakdown the energy in one glucose molecule?
a) 2 turns b) 1 turn c) 3 turns d) 1.5 turns e) 4 turns
After fermentation in human cells, lactate is converted to pyruvate in the
A) bone marrow. B) heart. C) muscles. D) lungs. E) bloodstream.