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BiochemistryNucleic Acids
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Q52100. Which of the following statements about nucleic acid is most correct?

A.Both pentose nucleic acid and deoxypentose
B.Both pentose nucleic acid and deoxypentose
C.RNA contains cytosine and thymine
D.DNA and RNA are hydrolysed by weak alkali

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52101. Acid hydrolysis of ribonucleic acid would yield the following major products:

A.d- deoxyribose, cytosine, adenine
B.d-ribose, thymine, Guanine
C.d-ribose, cytosine, uracil, thymine
D.d-ribose, uracil, adenine, guanine, cytosine

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MCQs in Biochemistry
BiochemistryNucleic Acids
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Q52102. RNA does not contain

A.adenine
B.OH methyl cytosine
C.d-ribose
D.Uracil

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52103. Which of the following statements is correct?

A.a nucleo protein usually contain deoxy sugars
B.Nucleoproteins are usually absent from the
C.Nucleoproteins usually are present in the
D.Nucleoproteins usually occur in the nucleus

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MCQs in Biochemistry
BiochemistryNucleic Acids
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Q52104. Whcih of the following compound is present in RNA but absent from DNA?

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

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52105. Nucleic acids can be detected by means of their absorption maxima near 260 nm. Their absorption in this range is due to

A.Proteins
B.Purines and pyrimidines
C.Ribose
D.Deoxyribose

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52106. Which of the following contains a deoxy sugar?

A.RNA
B.DNA
C.ATP
D.UTP

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52107. DNA is

A.Usually present in tissues as a nucleo protein
B.A long chain polymer in which the
C.Different from RNA since in the latter the
D.Hydrolyzed by weal alkali (pH9 to 100°C)

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52108. Nobody is the name given to

A.Ribosome
B.Microsome
C.Centrosome
D.Nucleosome

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52109. Transcription is the formation of

A.DNA from a parent DNA
B.mRNA from a parent mRNA
C.pre mRNA from DNA
D.protein through mRNA

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52110. Translation is the formation of

A.DNA from DNA
B.mRNA from DNA
C.Protein through mRNA
D.mRNA from pre mRNA

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52111. Sigma and Rho factors are required for

A.Replication
B.Transcription
C.Translation
D.Polymerisation

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52112. The genine of φ×174 bacteriophage is interesting in that if contains

A.No DNA
B.DNA with uracil
C.Single stranded DNA
D.Triple standard DNA

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52113. Okasaki fragments are small bits of

A.RNA
B.DNA
C.DNA with RNA heads
D.RNA with DNA heads

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52114. In addition to the DNA of nucleus there DNA is

A.Mitochondrian
B.Endoplasmic reticulum
C.Golgi apparatus
D.Plasma membrane

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52115. The mitochondrial DNA is

A.Like the nuclear DNA in structure
B.Single stranded, linear
C.Double stranded, circular
D.Single stranded, circular

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52116. A synthetic RNA having the sequence of UUUUUU (Poly U) will give a protein having poly ______.

A.Alamine
B.Phenyl alanine
C.Glycine
D.Methionine

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52117. Lac operon of E. coli contains _______ is continuity.

A.Regulator and operator genes only
B.Operator and structural genes only
C.Regular and structural genes only
D.Regulator, operator and structural genes

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MCQs in Biochemistry
BiochemistryNucleic Acids
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Q52118. A mRNA of eukaryotes can code for

A.Only one polypeptide
B.Two polypeptides
C.Three polypeptides
D.Five polypeptides

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MCQs in BiochemistryNucleic Acids
BiochemistryNucleic Acids
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Q52119. mRNA of prokaryotes can code for

A.More than one polypeptide
B.Only one polypeptide
C.Many exons and introns
D.Introns only

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MCQs in BiochemistryNucleic Acids
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