The discontinuous aspect of replication of DNA in vivo is caused by ________
A) topoisomerases cutting the DNA in a random fashion
B) trinucleotide repeats
C) polymerase slippage
D) the 5? to 3? polarity restriction
E) sister-chromatid exchanges
Answer: D
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The disease whose symptoms are most closely related to the symptoms of chronic syphilis is
A) Rocky Mountain spotted fever. B) latent Lyme disease. C) typhus. D) HPS.
Amongst all others, which is the largest macromolecule?
A. monosaccharide B. disaccharide C. polysaccharide D. glucose E. sucrose
Depression and an overwhelming desire to sleep are associated with
a. diabetes mellitus. b. diabetes insipidus. c. hyperthyroidism. d. seasonal affective disorder. e. a goiter.
Which is true about chemical reactions?
a. They represent the way matter is created and destroyed b. They involve the making and breaking of chemical bonds c. They may have different numbers of a given atom on each side d. They reach chemical equilibrium when the amounts of products are equal