Which molecule is responsible for carrying the acetyl group from pyruvate into the citric acid cycle?
a. NADH
b. FADH2
c. ATP
d. CoA
e. oxaloacetate
ANSWER: d
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Minute amounts of a pathogen in a patient sample can be rapidly detected by specifically amplifying and identifying its nucleic acid using PCR. This is an example of
A.) an immunologic method. B.) a microscopic method. C.) a phenotypic method. D.) a genetic method.
Two nuclei are formed during
A. prophase I. B. metaphase I. C. anaphase I. D. telophase I.
Which fungus group is responsible for Dutch elm disease and the destruction of the American elm?
A) Zygomycetes B) Chytrids C) Basidiomycetes D) Glomeromycetes E) Ascomycetes
An atom becomes an ion when:
A) it gains or loses protons. B) it gains or loses electrons. C) hydrogen ions are shared. D) it forms a covalent bond. E) it gains or loses neutrons.