NEET Biology: Molecular Basis of Inheritance — MCQ Test 4

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

Q7. What is the function of RNA splicing in eukaryotes?

Q8. Which of the following statements about the structure of DNA is correct?

Q9. Which of the following statements about translation is correct?

Q10. Which type of RNA polymerase transcribes messenger RNA (mRNA) in eukaryotic cells?

NEET Biology — Molecular Basis of Inheritance

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

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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, Incorrect, Statement, Molecular, and Scientist.

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 incorrect?

  • A. The lac operon is regulated by a repressor protein.
  • B. The lac operon is always active, even in the absence of lactose.
  • C. Lactose acts as an inducer in the lac operon.
  • D. The lac operon is found in prokaryotic cells.

Q2. Which of the following is a correct statement about the Central Dogma of molecular biology?

  • A. Genetic information flows from RNA to DNA to protein.
  • B. Proteins store genetic information and pass it to the next generation.
  • C. DNA is transcribed into RNA, which is translated into protein.
  • D. All organisms follow the Central Dogma without exceptions.

Q3. Which scientist(s) discovered that the ratio of adenine to thymine and guanine to cytosine is constant in DNA?

  • A. Rosalind Franklin
  • B. Erwin Chargaff
  • C. Hershey and Chase
  • D. Watson and Crick

Q4. Which scientist(s) confirmed that DNA is the genetic material through experiments with bacteriophages?

  • A. Hershey and Chase
  • B. Watson and Crick
  • C. Avery, MacLeod, and McCarty
  • D. Rosalind Franklin

Q5. What is the primary function of the enzyme helicase in DNA replication?

  • A. Synthesizing the RNA primer
  • B. Unwinding the DNA double helix
  • C. Joining Okazaki fragments
  • D. Preventing supercoiling of DNA

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