Protein and Nuclei Acids MCQ Questions & Answers

1

The enzyme which synthesize RNA primer for DNA synthesis is

A) DNA primase B) Primase C) Primer synthase D) All of the above

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Answer & Solution

Answer: Option A

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2

The role of guide RNA (gRNA) is recognized in

A) RNA editing B) Antisense RNA C) RNA splicing D) All of the above

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Answer & Solution

Answer: Option A

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3

The form or conformation of DNA double helix which is prevalent in vivo is

A) B-DNA B) A-DNA C) Z-DNA D) All of the above

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Answer & Solution

Answer: Option A

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4

The sugar residues are covalently joined by

A) 5' → 3' phosphodiester bonds B) H₂ bonds C) Phosphorylated ions D) Covalent bonds

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Answer & Solution

Answer: Option A

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5

The daughter cells receive duplex DNA as

A) Both strands from parents B) Both strands are newly synthesized C) One from parent and one is newly synthesized D) Can not be predicted

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Answer & Solution

Answer: Option C

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6

Molecular markers are useful in

A) Gene or disease marker maps B) Gene tracking C) Marker-marker mapping D) All of the above

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Answer & Solution

Answer: Option D

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7

In eukaryotes, which DNA polymerase is involved in extending the RNA primer and providing template for an accessory factor and replication factor, which control the processivity in lagging strand?

A) α B) β C) δ D) γ

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Answer & Solution

Answer: Option A

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8

Which one of the following base is present only in DNA?

A) Thymine B) Uracil C) 5-methylcytosine D) Inosine

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Answer & Solution

Answer: Option A

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9

Kinase reactions

A) Inhibit ATP breakdown B) Involve the addition or removal of a phosphate group C) Involve the addition or removal of a ketone group D) Involve the addition or removal of an amino acid to a polypeptide chain

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Answer & Solution

Answer: Option B

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10

The backbone of double helix DNA is

A) Sugar phosphate units B) Nitrogenous bases C) Nucleosides D) All of the above

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Answer & Solution

Answer: Option A

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Protein and Nuclei Acids MCQ Questions & Answers | Biotechnology