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BiochemistryNucleic Acids
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Q51600. Adenine is

A.6-Amino purine
B.2-Amino-6-oxypurine
C.2-Oxy-4-aminopyrimidine
D.2, 4-Dioxypyrimidine

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51601. 2, 4-Dioxypyrimidine is

A.Thymine
B.Cystosine
C.Uracil
D.Guanine

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51602. The chemical name of guanine is

A.2,4-Dioxy-5-methylpyrimidine
B.2-Amino-6-oxypurine
C.2-Oxy-4-aminopyrimidine
D.2, 4-Dioxypyrimidine

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51603. Nucleotides and nucleic acids concentration are often also expressed in terms of

A.ng
B.mg
C.meq
D.OD at 260 nm

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51604. The pyrimidine nucleotide acting as the high energy intermediate is

A.ATP
B.UTP
C.UDPG
D.CMP

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51605. The carbon of the pentose in ester linkage with the phosphate in a nucleotide struc- ture is

A.C1
B.C3
C.C4
D.C5

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51606. Uracil and ribose form

A.Uridine
B.Cytidine
C.Guanosine
D.Adenosine

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51607. The most abundant free nucleotide in mammalian cells is

A.ATP
B.NAD
C.GTP
D.FAD

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51608. The mean intracellular concentration of ATP in mammalian cell is about

A.1 mM
B.2 mM
C.0.1 mM
D.0.2 mM

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51609. The nucleic acid base found in mRNA but not in DNA is

A.Adenine
B.Cytosine
C.Guanine
D.Uracil

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51610. In RNA moleule ‘Caps’

A.Allow tRNA to be processed
B.Are unique to eukaryotic mRNA
C.Occur at the 3’ end of tRNA
D.Allow correct translation of prokaryotic mRNA

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51611. In contrast to eukaryotic mRNA, prokaryotic mRNA

A.Can be polycistronic
B.Is synthesized with introns
C.Can only be monocistronic
D.Has a poly A tail

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51612. The size of small stable RNA ranges from

A.0–40 nucleotides
B.40–80 nucleotides
C.90–300 nucleotides
D.More than 320 nucleotides

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51613. The number of small stable RNAs per cell ranges from

A.10–50,000
B.50,000–1,00,000
C.1,00,000–10,00,000
D.More than 10 lakhs

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51614. Molecular weight of heterogenous nuclear RNA (hnRNA) is

A.More than 107
B.105 to 106
C.104 to 105
D.Less than 104

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MCQs in BiochemistryNucleic Acids
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Q51615. In RNA molecule guanine content does not necessarily equal its cytosine content nor does its adenine content necessarily equal its uracil content since it is a

A.Single strand molecule
B.Double stranded molecule
C.Double stranded helical molecule
D.Polymer of purine and pyrimidine ribonucleo-

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MCQs in Biochemistry
BiochemistryNucleic Acids
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Q51616. The nitrogenous base present in the RNA molecule is

A.Thymine
B.Uracil
C.Xanthine
D.Hypoxanthine

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51617. RNA does not contain

A.Uracil
B.Adenine
C.Thymine
D.Ribose

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51618. The sugar moiety present in RNA is

A.Ribulose
B.Arabinose
C.Ribose
D.Deoxyribose

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q51619. In RNA molecule

A.Guanine content equals cytosine
B.Adenine content equals uracil
C.Adenine content equals guanine
D.Guanine content does not necessarily equal

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MCQs in BiochemistryNucleic Acids
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Nucleic Acids