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Whether a nucleic acid is defined as RNA or DNA is determined by: (10 points)

	the charge on the phosphate group.
	having U vs. T as bases.
	all of these answers.
	the number of phosphate groups.
	having or lacking a 2' hydroxyl.
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written by dr_g • topics: nucleic acids block unblock • DNA block unblock • RNA block unblock • biochemistry block unblock • pharmacy block unblock

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The nucleic acid backbone consists of (10 points)

	nucleosides.
	peptide (amide) bonds.
	phosphate-pentose-phosphate-pentose...
	A, G, C, T, and U.
	cross-linked based.
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written by dr_g • topics: nucleic acids block unblock • DNA block unblock • RNA block unblock • biochemistry block unblock • pharmacy block unblock

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A nucleotide (10 points)

	can have 3 phosphate groups.
	can have 1, 2, or 3 phosphate groups.
	has no phosphate groups.
	can have 2 phosphate groups.
	can have 1 phosphate group.
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written by dr_g • topics: nucleic acids block unblock • DNA block unblock • RNA block unblock • biochemistry block unblock • pharmacy block unblock

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Through-space (nonbonded interactions) in nucleic acids include (30 points)

	phosphodiester linkages, hydrogen bonding, and base stacking.
	only base stacking.
	phosphodiester linkages.
	hydrogen bonding and base stacking.
	only hydrogen bonding.
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written by dr_g • topics: nucleic acids block unblock • DNA block unblock • RNA block unblock • biochemistry block unblock • pharmacy block unblock

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The bases in nucleic acids (20 points)

	are planar or nearly planar.
	cannot form hydrogen bonds.
	are attached at the 2' position.
	are types of carbohydrates.
	are very hydrophilic.
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written by dr_g • topics: nucleic acids block unblock • DNA block unblock • RNA block unblock • biochemistry block unblock • pharmacy block unblock

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_______ in mRNA can catalyze their own excision from the mRNA molecule. (10 points)

	Exons
	Nucleons
	Introns
	Klingons
	Protons
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written by dr_g • topics: nucleic acids block unblock • DNA block unblock • RNA block unblock • biochemistry block unblock • pharmacy block unblock

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UV damage to DNA can cause (30 points)

	covalent linkage of adjacent bases.
	amide bond formation.
	hydrolysis.
	covalent linkage of adjacent bases and amide bond formation.
	covalent linkage of adjacent bases, amide bond formation, and hydrolysis.
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written by dr_g • topics: nucleic acids block unblock • DNA block unblock • RNA block unblock • biochemistry block unblock • pharmacy block unblock

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Hydrolysis of an anhydride bond in ATP yields (10 points)

	1 kcal/mol.
	3 kJ/mol.
	3 J/mol.
	30 J/mol.
	30 kJ/mol.
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written by dr_g • topics: nucleic acids block unblock • DNA block unblock • RNA block unblock • biochemistry block unblock • pharmacy block unblock

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In the laboratory, DNA strands up to _____ nucleotides can routinely be synthesized. (20 points)

	800
	8
	80
	8000
	3,000,000,000
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written by dr_g • topics: nucleic acids block unblock • DNA block unblock • RNA block unblock • biochemistry block unblock • pharmacy block unblock

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______ is an example of a ribozyme. (10 points)

	The ribosome
	Phosphatidylcholine
	Cyclooxygenase
	Hemoglobin
	HMG CoA reductase
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written by dr_g • topics: nucleic acids block unblock • DNA block unblock • RNA block unblock • biochemistry block unblock • pharmacy block unblock

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