An agent that would work well as an antibiotic against prokaryotic infection would target the

A) 50S large ribosomal subunit.
B) RNA polymerase II.
C) 40S small ribosomal subunit.
D) DNA polymerase.
E) mitochondria.


A) 50S large ribosomal subunit.

Biology & Microbiology

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Which is usually true of archaea?

A. They are found as rods, spheres, or spirals. B. They reproduce by binary fission. C. They contain rigid cell walls. D. They are found as single cells. E. All of the choices are correct.

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According to the biological species concept, members of the same species look alike primarily because they ____

a. live in the same environment b. share the same gene pool c. have a common ancestor d. have stopped evolving e. are adapted to the same life style

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Pollen contains that produce .

A. gametophytes; sperm B. sporophytes; sperm C. gametophytes; spores D. sperm; spores E. sporophytes; spores

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Egg activation by sperm entry is associated with a sudden increase in protein synthesis. What must be true of these proteins?

A. They are from maternal mRNAs. B. They are from paternal mRNAs. C. They are small peptides. D. They are histone proteins.

Biology & Microbiology