DNA MCQs with answers Page - 3

You will find multiple-choice questions (MCQs) related to #DNA here. Go through these questions to prepare effectively for your upcoming exams and interviews.

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Q. Which organelle contains its own DNA apart from the nucleus?

  • (A) Mitochondria
  • (B) Ribosome
  • (C) Golgi body
  • (D) Lysosome

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Q. What is the full form of RNA?

  • (A) Ribonucleic Acid
  • (B) Ribogenetic Acid
  • (C) Ribosomal Acid
  • (D) Ribonitric Acid

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Q. DNA replication occurs during which phase of the cell cycle?

  • (A) G1 phase
  • (B) S phase
  • (C) G2 phase
  • (D) M phase

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Q. Which of the following organisms has circular DNA?

  • (A) Bacteria
  • (B) Humans
  • (C) Fungi
  • (D) Plants

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Q. DNA stores genetic information in the sequence of?

  • (A) Sugars
  • (B) Phosphates
  • (C) Nitrogen bases
  • (D) Proteins

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Q. Which base is complementary to cytosine in DNA?

  • (A) Guanine
  • (B) Adenine
  • (C) Thymine
  • (D) Uracil

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Q. DNA fingerprinting is based on which property of DNA?

  • (A) Replication
  • (B) Polymorphism
  • (C) Denaturation
  • (D) Mutation

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Q. Which part of the nucleotide contains genetic information?

  • (A) Phosphate group
  • (B) Sugar molecule
  • (C) Nitrogen base
  • (D) Hydrogen bond

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Q. What happens to DNA during cell division?

  • (A) It disappears
  • (B) It replicates
  • (C) It changes shape permanently
  • (D) It converts to RNA

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Q. Which component forms the backbone of the DNA molecule?

  • (A) Nitrogen bases only
  • (B) Sugar and phosphate
  • (C) Base pairs only
  • (D) Only phosphate
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