During DNA replication, which nucleotide will bind to an A nucleotide in the original or parental DNA strand?
C
G
U
T
A
Answer: T
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Which protein makes up the thick filaments?
A. Myopathy B. Actin C. Myosin D. Troponin E. Tropomyosin
Which valve prevents the backflow of blood into the left ventricle when the ventricles relax?
A. Left atrioventricular valve B. Aortic semilunar valve C. Right atrioventricular valve D. Pulmonary semilunar valve E. None of the choices is correct.
The mushroom poison muscarine can bind to receptors on ________
A) cell bodies and dendrites of parasympathetic postganglionic neurons B) cell bodies and dendrites of sympathetic postganglionic neurons C) the hormone producing cells of the adrenal medulla D) all effector cells stimulated by postganglionic cholinergic fibers
A patient is prescribed an MAO inhibitor by their doctor. Knowing the actions of MAO inhibitors, this patient's diagnosis may be ________.
A. depression, since MAO inhibitors block the binding of serotonin to postsynaptic cells B. depression, since MAO inhibitors block the degradation of serotonin at the synapse C. hypertension, since MAO inhibitors block the release of norepinephrine from sympathetic axons D. hypertension, since MAO inhibitors block the degradation of norepinephrine at the synapse