Drugs that are bacteriostatic
A. kill bacteria.
B. promote bacterial growth.
C. inactivate bacterial spores.
D. inhibit the growth of bacteria.
D
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Amino acids in proteins are linked to one another by peptide bonds between the
A. methyl group of one amino acid and a side group of another amino acid. B. carbon atoms of two adjacent amino acids. C. carboxyl group of one amino acid and the amino group of another. D. nitrogen atom and carboxyl ion.
Without proofreading, the rate of errors in DNA replication in bacteria is as high as about one for
every ____ nucleotides assembled.
a. 10 to 100 b. 100,000 to 1,000,000 c. 1000 to 10,000 d. 10,000,000 to 100,000,000 e. 100,000,000 to 1,000,000,000
What two structures must interact in order to translate an mRNA into a polypeptide?
a. Ribosomes and tRNA b. DNA and amino acids c. tRNA and mRNA d. Ribosomes and DNA e. Amino acids and ribosomes
Why are neocallimastigomycetes being studied for biofuel production?
A. They can ferment glucose into alcohol. B. They can generate methane. C. They provide energy to power fermentation. D. They can release fermentable sugars from structural polysaccharides. E. They can extract pollutants from biofuel starting materials.