The level of protein structure that is even higher than quaternary structure is

A) R-group interactions.
B) subunit interactions and assembly.
C) enzyme complex formation.
D) the linear sequence of amino acids.
E) hydrogen bond formation.


C) enzyme complex formation.

Biology & Microbiology

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A striking feature of Clostridium tetani that differentiates it from other pathogenic species of Clostridium is its ability to

A. produce a greenish pigment. B. form spores. C. form terminally located, spherical spores. D. grow aerobically

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The first life-related and carbon-based molecule, ____, was synthesized in vitro by a German chemist in 1825

a. RNA b. DNA c. protein d. urea e. ozone

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In the breakdown of glucose, a phosphorylated

six-carbon compound is split into two threecarbon compounds, which are named a. PGAL. b. pyruvate. c. acetyl-CoA. d. lactate. e. acetaldehyde.

Biology & Microbiology

Which of the following is NOT true of human chromosomes?

A) The haploid number is 23. B) Human gametes end up with one of each type of 23 chromosomes. C) Human gametes end up with two of each type of 23 chromosomes. D) The diploid number is 46. E) There are 23 pairs of chromosomes.

Biology & Microbiology