Which is not an APC?
A) dentritic cells
B) macrophages
C) mature B cells
D) natural killer cells
E) None of the answers is correct; all of these are APCs.
Answer: D) natural killer cells
Biology & Microbiology
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a. plasmolysis b. diffusion c. active transport d. the cell from bursting e. the cell from shrinking
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The force of the original vibrations entering the ear is amplified by the
a. organ of Corti. b. oval window. c. round window. d. Eustachian tube. e. semicircular canals.
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Gene conversion results from
A. discontinuous replication. B. photoreactivation. C. mismatch repair. D. SOS repair. E. excision repair.
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Genotypic sex determination does not in ________
A) mammals B) round worms C) reptiles D) flies E) birds
Biology & Microbiology