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BiochemistryNucleic Acids
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Q52140. Which of the following are nucleo proteins?

A.Protamines
B.Histones
C.Deoxy and Ribo nucleo proteins
D.All of these

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52141. The total RNA in cell tRNA constitutes

A.1–10%
B.10–20%
C.30–50%
D.50–80%

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52142. Unit of genetic information:

A.DNA
B.RNA
C.Cistron
D.None of these

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52143. Anticodon sequence are seen in

A.tRNA and transcribed DNA strand
B.tRNA and complementary DNA strand
C.mRNA
D.mRNA and complementary DNA strand

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52144. cAMD is destroyed by

A.Adenylate cyclase
B.Phosphodiesterase
C.Synthetase phosphatase
D.Synthetase kinase

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52145. Restriction enzymes have been found in

A.Humans
B.Birds
C.Bacteria
D.Bacteriophase

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52146. Sulphur is not present in

A.Thiamine
B.Lipic acid
C.Thymine
D.Biotin

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52147. Which one of the following binds to specific nucleotide sequences?

A.RNA polymerase
B.Repressor
C.Inducer
D.Restriction

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52148. Using written convertion which one of the following sequences is complimentary to TGGCAGCCT?

A.ACC GTC GGA
B.ACC GUC GGA
C.AGG CTG CCA
D.TGG CTC GGA

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52149. Ribosomes similar to those of bacterial found in NUCLEIC ACIDS 271

A.They involve release of pyrophosphate from
B.They require activated nucleotide precursor
C.The direction of synthesis is
D.They require a primer

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MCQs in Biochemistry
BiochemistryNucleic Acids
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Q52150. 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 oneogenes

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52151. Which one of the following statements correctly describes eukaryotic DNA?

A.They involve release of pyrophosphate from
B.The direction of synthesis is
C.They require a primer 5’→3’
D.None of these

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MCQs in Biochemistry
BiochemistryNucleic Acids
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Q52152. Which one of the following causes frame shift mutation?

A.Transition
B.Transversion
C.Deletion
D.Substitution of purine to pyrimidine

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52153. Catabolism of thymidylate gives

A.α-alanine
B.β-alanine
C.α-aminoisobutyrate
D.β-aminoisobutyrate

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52154. Glycine gives __________ atoms of purine.

A.C2, C3
B.C4, C5 and N7
C.C4, C5 and N9
D.C4, C6 and N7

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52155. A common substrate of HGPRTase, APRTase and PRPP glutamyl amidotransferase is

A.Ribose 5 phosphate
B.Phosphoribosyl pyrophosphate
C.Hypoxanthine
D.Adenosine

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52156. Carbon 6-of purine skeleton comes from

A.Atmospheric CO2
B.1 carbon carried by folate
C.Betoine
D.Methionine

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52157. Uric acid is the catabolic end product of

A.Porphyrine
B.Purines
C.Pyrimidines
D.Pyridoxine

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52158. Diphenylamine method is employed in the quantitation of

A.Nucleic acid
B.RNA
C.DNA
D.Proteins

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52159. Orcinol method is employed in the quanti- tation of

A.Nucleic acid
B.DNA
C.RNA
D.Proteins

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MCQs in BiochemistryNucleic Acids
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Nucleic Acids
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