General Science and Nature

A

It catalyzes the formation of peptide bonds during translation

B

It synthesizes mRNA from a DNA template

C

It stabilizes the mRNA molecule

D

It binds to the promoter region to initiate transcription

Explanation Comments

A

DNA polymerase III

B

DNA ligase

C

Exonuclease

D

DNA helicase

Explanation Comments

A

It describes the structure of the DNA double helix

B

It provides insight into the regulation of gene expression in prokaryotic cells

C

It explains the process of DNA replication

D

It outlines the process of protein synthesis

Explanation Comments

A

Transcription

B

Meiosis

C

Mitosis

D

DNA replication

Explanation Comments

A

It targets proteins to the endoplasmic reticulum (ER) membrane

B

It catalyzes the formation of peptide bonds between amino acids

C

It transports amino acids to the ribosome

D

It regulates translation initiation

Explanation Comments

A

mRNA

B

snoRNA

C

snRNA

D

tRNA

Explanation Comments

A

It synthesizes RNA from a DNA template

B

It repairs DNA damage

C

It synthesizes DNA from an RNA template

D

It catalyzes the formation of peptide bonds during translation

Explanation Comments

A

rRNA

B

tRNA

C

mRNA

D

DNA

Explanation Comments

A

It removes supercoils ahead of the replication fork

B

It joins Okazaki fragments together

C

It synthesizes new DNA strands

D

It unwinds the DNA double helix

Explanation Comments

A

It synthesizes tRNA molecules

B

It synthesizes small nuclear RNA (snRNA) molecules

C

It synthesizes mRNA molecules

D

It synthesizes rRNA molecules

Explanation Comments

All MCQs

What is the role of the sigma factor in bacterial transcription?

Explanation:

Which of the following enzymes is responsible for proofreading newly synthesized DNA strands and correcting errors during DNA replication?

Explanation:

What is the significance of the operon model proposed by Jacob and Monod?

Explanation:

Which of the following processes is responsible for generating genetic diversity in sexually reproducing organisms?

Explanation:

What is the function of the signal recognition particle (SRP) during protein synthesis in eukaryotic cells?

Explanation:

Which of the following types of RNA is involved in the synthesis of ribosomal RNA (rRNA)?

Explanation:

What is the function of the enzyme reverse transcriptase in retroviruses?

Explanation:

Which of the following is not a component of the ribosome?

Explanation:

What is the function of the enzyme DNA gyrase during DNA replication in prokaryotic cells?

Explanation:

What is the function of RNA polymerase I in eukaryotic cells?

Explanation:

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