A specific aminoacyl-tRNA synthetase
a. has two binding sites.
b. usually can bind more than one tRNA.
c. usually can bind more than one amino acid.
d. recognizes tRNAs only by information in the anticodon loop.
e. must hydrolyze GTP to "charge" tRNAs.
Ans: b
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Phospholipase C hydrolyzes a membrane phospholipid to produce
A. IP3 only. B. protein kinase C only. C. diacylglycerol only. D. both IP3 and protein kinase C. E. both IP3 and diacylglycerol.
The phrase "one gene-one enzyme" is associated with the work of
A. Lederberg. B. Watson and Crick. C. Beadle and Tatum. D. Mendel.
Cats, dogs, and fish are consumers that have the ability to move actively from one place to another
These organisms belong to the ____ kingdom.
a. Plantae b. Fungi c. Animalia d. “Protist” e. Bacteria
In mammals, the glomerulus is located within the
a. distal convoluted tubule. b. Bowman's capsule. c. descending segment of the loop of Henle. d. proximal convoluted tubule. e. ascending segment of the loop of Henle.