Vitamin B3 is a precursor of ____
a. NADH
b. ATP
c. DNA
d. RNA
e. FADH
ANSWER: a
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Amino acid variability is especially apparent in several ________ in the V domains of different immunoglobulins
A) heavy chains B) complementarity-determining regions (CDR) C) peptide motifs D) epitopes
Gene targeting is currently being used in all of the following applications except:a
study of immune system function. b. investigations into cancer. c. study of respiratory diseases. d. forensic science. e. the study of development of embryos.
Cystic fibrosis is a genetic disease in which thick mucus accumulates over several epithelia and eventually blocks the pulmonary airways. The molecular basis of this disease is the production of a defective
a. mucin. b. chloride/bicarbonate channel. c. Na+-K+ pump. d. Na+-Ca2+ transporter.
What form of energy is used during both the initiation and the elongation of protein synthesis?
a. cAMP b. GTP c. proton motive force d. rATP