The causative agent of Lyme disease is ________.

A. Ixodes scapularis
B. Borrelia burgdorferi
C. Ixodes pacificus
D. Borrelia hermsii
E. Leptospira interrogans


Answer: B

Biology & Microbiology

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The smooth endoplasmic reticulum functions in synthesis of

A) lipids. B) polysaccharides. C) proteins. D) DNA. E) all of the above

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Of the 64 triplet combinations in the genetic code, ____________________ code(s) for amino acids and ____________________ code(s) for the signal that ends protein synthesis

Fill in the blank(s) with correct word

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The antiparallel polarity of the two DNA strands within the double helix affects DNA replication in that

A) it takes twice as long to replicate two strands sequentially from 5? to 3?. B) circular bacterial DNA does not have polarity, so a single strand can be copied twice. C) DNA polymerases synthesizing both strands move in the direction of the replication fork, one strand is replicated discontinuously. D) each portion of the double helix must be unwound twice so that both strands are replicated continuously.

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Pyruvate is the end product of

a. glycolysis. b. acetyl-CoA formation. c. fermentation. d. the Krebs cycle. e. the citric acid cycle.

Biology & Microbiology