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Objective Questions on Molecular Biology

Objective Questions on Molecular Biology below can help students evaluate their knowledge on molecular biology. Answers are also given for MCQ on molecular biology to help you remember. Try our MCQ on molecular biology to see if you can get all the answers right for the questions below.

Objective Questions on Molecular Biology

Molecular Biology is the field of biology that studies the composition, structure and interactions of cellular molecules  such as nucleic acids and proteins. 

MCQ on Molecular Biology

1. The macromolecule regarded as the reserve bank of genetic information

  1. Protein
  2. DNA
  3. RNA
  4. Polysaccharide

2. The biological information flows from DNA to RNA and from RNA to

  1. Lipids
  2. Carbohydrates
  3.  Proteins
  4.  Nucleotides

3. The total genetic information contained in a DNA is referred to as

  1. Gene
  2. Genome
  3. Okazaki Piece
  4.  Ribozyme
  5.  Genome

4. The DNA base pairing is based on ______ rules

  1. Watson & Crick
  2. Arther Kornberg
  3. Stahl & Meselson
  4. McClintock

5. Pseudogenes are related to

  1. Non functional genes
  2. Transcribed into mRNA
  3. Translated in to functional proteins
  4. Transcribed into tRNA 

6. Mobile genetic elements were visualized by

  1. T.H Morgan
  2. Barbara McClintock
  3. G Khorana
  4. C.B Bridge

7. Fundamental unit of DNA organization

  1. Replisome
  2. Nucleosome
  3. Primosome
  4. Chromatin

8. Uptake of naked DNA is called

  1. Transduction
  2. Transformation
  3. Conjugation
  4. Recombination

9. Transduction experiment was conducted by

  1. Frederick Griffith
  2. Zinder and Ledenberg
  3. Hershey and Chase
  4. Avery and Mc Carty

10. Histones are rich in

  1. Arg and  Lys
  2. Lys and  Gly
  3. Arg and  Glu
  4.  Arg and Gly

11. Which histone protein is not a part of core particle of nucleosome?

  1. H1
  2. H2a
  3. H2b
  4. H4

12. Which histone protein is involved in the transition between the solenoid form and the extended nucleosome form?

  1. H1
  2. H2a
  3. H2b
  4. H4

13. Transfer of genetic material through bacteriophage is called

  1. Transduction
  2. Transformation
  3.  Conjugation
  4. Recombination

14. Blendor experiment is involved in

  1. Transduction
  2. Transformation
  3. Conjugation
  4. Recombination

15. Smaller blocks occur at the end of chromosome arm is called _______

  1. Centromere
  2. Telomere
  3.  Blastomeres
  4. Blastocyst

Answers

  1. DNA
  2. Proteins
  3.  Genome
  4. Watson & Crick
  5. Non functional genes
  6. Barbara McClintock
  7. Nucleosome
  8. Transformation
  9. Hershey and Chase
  10. Arg and Lys
  11. H1
  12. H1
  13. Transduction
  14. Transduction
  15. Telomere

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Further Readings

Reference

  1. https://plato.stanford.edu/entries/molecular-biology/
  2. https://www.thermofisher.com/blog/ask-a-scientist/what-is-molecular-biology/