Indicator bacteria are
A. coliforms.
B. evidence of fecal contamination.
C. gram-negative rods.
D. used in water quality tests.
E. All of the choices are correct.
Answer: E
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Photoautotrophs use light energy directly for
A. the reduction of carbon dioxide to glucose. B. the production of ATP and NADPH. C. both the production of ATP and NADPH and the reduction of carbon dioxide to glucose. D. neither the production of ATP and NADPH nor the reduction of carbon dioxide to glucose.
Modified Thayer-Martin (MTM) agar
A) incorporates antibiotics into the medium. B) enhances the growth of normal flora. C) prevents the growth of Neisseria gonorrhoeae, but promotes the growth of Neisseria meningitidis. D) prevents the growth of Neisseria meningitides, but promotes the growth of Neisseria gonorrhoeae.
A specific marker with two peaks indicates that the individual is ________ with respect to that particular STR marker
a. homozygous b. heterozygous
Which phrase best describes the process of meiosis?
A.) occurs in body cells B.) results in genetically identical cells C.) happens only in haploid cells D.) produces haploid gametes