Nucleic Acids - Mock Test 4

Question 31

Which property is shared by both CTP and dTDP

A) Both contain the same sugar. B) Both contain the same charge at cellular pH. C) Both contain a planar six-membered ring. D) Both contain phosphodiester bonds.

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Question 32

Which component is found in both guanosine and uridine

A) Both contain an aldohexose. B) Both contain three hydroxyl groups. C) Both contain a 1’,9 - bond D) Both contain a pyranose.

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Question 33

Which characteristic is shared by both adenine and cytosine

A) Both contain one methyl group. B) Both are anomeric C) Both contain one keto group. D) Both are heterocyclic

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Question 34

Which property is found in nucleosides and nucleotides

A) Both contain a nitrogenous base, a pentose, and at least one phosphate group. B) Both contain a covalent phosphodister bond that is broken in strong aci4⃣ C) Both contain an anomeric carbon atom that is part of a β-N-glycosidic bon D) 3⃣ Both contain an anomeric carbon atom that is part of a β-N-glycosidic bon

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Question 35

Which characteristic is shared by purines and pyrimidines

A) Both contain two heterocyclic rings with aromatic character. B) Both can form multiple non-covalent hydrogen bonds. C) Both exist in planar configurations with a hemiacetal linkage. D) Both exist as neutral zwitterions under cellular conditions

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Question 36

Which property is shared by both GDP and AMP

A) Both contain the same charge at neutral pH. B) Both contain the same number of phosphate groups. C) Both contain the same purine. D) Both contain the same furanose.

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Question 37

Which component is found in both adenosine and deoxycytidine

A) Both contain a pyranose. B) Both contain a 1,1’-N-glycosidic bon4⃣ C) Both contain a pyrimidine. D) 3⃣ Both contain a pyrimidine.

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Question 38

Which structural feature is shared by both uracil and thymine

A) Both contain two keto groups. B) Both contain one methyl group. C) Both contain a five-membered ring. D) Both contain three nitrogen atoms.

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Question 39

Template-directed DNA synthesis occurs in all the following except?

A) The replication fork B) Polymerase chain reaction C) Growth of RNA tumor viruses D) Expression of oncogenes

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Question 40

Ribosomes similar to those of bacteria found in?

A) Plant nuclei B) Cardiac muscle cytoplasm C) Liver endoplasmic reticulum D) Neuronal cytoplasm

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