NEET Biology: Molecular Basis of Inheritance — MCQ Test 12

Q6. Which of the following statements about transcription is correct?

Q7. Which scientist(s) confirmed that DNA is the genetic material through experiments with bacteriophages?

Q8. Which of the following is a post-transcriptional modification in eukaryotes?

Q9. Which of the following best describes the function of the TATA box?

Q10. Which of the following enzymes is responsible for synthesizing rRNA in eukaryotes?

NEET Biology — Molecular Basis of Inheritance

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Which of the following statements about the lac operon is correct?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Biology preparation, focusing specifically on the chapter Molecular Basis of Inheritance. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Following, Statements, Topoisomerase, Replication, Incorrect, and Fingerprinting.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. Which of the following statements about the lac operon is correct?

  • A. The lac operon is normally active in the absence of lactose.
  • B. The lac operon is regulated by a repressor protein.
  • C. The lac operon does not require a promoter sequence.
  • D. Lactose acts as a repressor in the lac operon.

Q2. What is the role of topoisomerase in DNA replication?

  • A. Unwinds the DNA helix
  • B. Prevents overwinding of DNA ahead of the replication fork
  • C. Synthesizes RNA primer
  • D. Joins Okazaki fragments

Q3. Which of the following statements about the genetic code is incorrect?

  • A. The genetic code is triplet in nature.
  • B. Each codon codes for multiple amino acids.
  • C. The genetic code is universal.
  • D. The genetic code is non-overlapping.

Q4. Which of the following statements about DNA fingerprinting is correct?

  • A. It relies on variations in protein sequences
  • B. It analyzes repetitive DNA sequences
  • C. It is identical in all humans
  • D. It does not require DNA polymerase

Q5. What is the main function of a nucleosome in eukaryotic cells?

  • A. To regulate gene expression
  • B. To store genetic material
  • C. To package DNA into a compact structure
  • D. To synthesize proteins

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