The presence of a specific plasmid in a bacterial cell may be determined if the plasmid _____
A. is exceptionally large
B. is an expression vector
C. contains pieces of a viral genome
D. contains a selectable marker
D
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Rats learning to press a lever to receive food is an example of
A. avoidance. B. operant conditioning. C. habituation. D. inoperant conditioning. E. negative reinforcement.
If a codon in the mRNA is 5’-ACG-3’, then the anticodon of the proper tRNA will be ____
a. 5’-UGC-3’ b. 5’-CGU-3’ c. 5’-CGT-3’ d. 5’-TGC-3’ e. 5’-GCA-3’
Before examining a fungal cell under a microscope, you are told that it is a dikaryotic cell. Given that,
you should expect the cell to have
a. two complete sets of chromosomes. b. two nuclei. c. two hyphae. d. two complete sets of chromosomes and two nuclei. e. two nuclei and two hyphae.
The part of the brain that includes the thalamus, hypothalamus, and pineal gland is the
a. pons. b. medulla oblongata. c. dorpora quadrigemina. d. diencephalon. e. telencephalon.