Prokaryotes were split into two domains based on differences in

a. staining characteristics.
b. metabolic capabilities.
c. rRNA sequences.
d. cell membrane properties.
e. cell wall composition.


C

Biology & Microbiology

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Which of the following is not a feature of a bacterial artificial chromosome (BAC) vector?

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In addition to S. aureus, impetigo may also involve

A. M. luteus. B. S. pyogenes. C. S. epidermidis. D. Pseudomonas spp.

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After three replications of a single DNA molecule, what percent of the resulting double helices contain

one strand of the "original" DNA? a. 0 percent b. 25 percent c. 50 percent d. 75 percent e. 100 percent

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What is the maximum number of 100 amino acid long polypeptides that could be made?

A) 10020 B) 2000 C) 20100 D) 20101 E) 20

Biology & Microbiology