You suspect a region of DNA contains a promoter and wish to confirm that a sequence of interest binds proteins. Which experiment would you use?
A) in situ hybridization
B) band shift assay
C) pulse-chase assay
D) Southern blotting
E) northern blotting
B
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Action potential propagation is the fastest in ____
a. a myelinated axon with a small diameter b. an unmyelinated axon with a small diameter c. a myelinated axon with a large diameter d. an unmyelinated axon with a large diameter e. all myelinated axons regardless of diameter
The intensity of an electrical impulse is reflected in the
a. frequency of action potentials. b. magnitude of action potentials. c. duration of action potentials. d. intensity of action potentials. e. the frequency and duration of action potentials.
The cardiac conduction system initiates and delivers an electrical impulse that begins in the ________.
Fill in the blank(s) with the appropriate word(s).
The chromosomes have arrived at opposite poles during
A) telophase. B) prophase. C) interphase. D) metaphase. E) anaphase.