NCERT Biology Class 12, Chapter 5

DNA RNA replication transcription translation MCQs for NEET-UG Biology

Revise this NCERT area with concise 4-option MCQs. Explanations are visible on each question page so students and search engines can read the learning value clearly.

What to revise before practicing

Focus on NCERT definitions, process order, examples, and common distractors. For NEET-UG, this topic should be practiced through direct concept checks and short reasoning questions rather than postgraduate clinical case framing.

Q1 • NCERT Biology Class 12, Chapter 5

Wobble in genetic code refers to

Q2 • NCERT Biology Class 12, Chapter 5

At which level is gene expression regulated in the lactose operon model?

Q3 • NCERT Biology Class 12, Chapter 5

Which of the following is correct regarding the regulation of tryptophan operon?

Q4 • NCERT Biology Class 12, Chapter 5

Which of the following is an incorrect description about the tryptophan operon?

Q5 • NCERT Biology Class 12, Chapter 5

The basic principle of nucleic acid hybridization is