James Watson and Francis Crick MCQ Questions and Answers for Practice

1. What did James Watson and Francis Crick discover?

1. DNA structure
2. RNA synthesis
3. Protein folding
4. Cell division

2. What did Chargaff’s rules help explain in Watson and Crick’s model?

1. Protein synthesis
2. Base pairing
3. DNA replication
4. Gene expression

3. Which of these is a key feature of the DNA double helix?

1. Parallel strands
2. Antiparallel strands
3. Random structure
4. Single helix

4. What are the base pairs Watson and Crick identified in DNA?

1. A-T and G-C
2. A-G and C-T
3. A-C and G-T
4. A-A and G-G

5. What forms the backbone of DNA?

1. Phosphate and sugar
2. Nitrogen and sugar
3. Protein and phosphate
4. Carbohydrate and nitrogen

6. Where did Watson and Crick work together?

1. Cavendish Laboratory
2. National Institutes of Health
3. Cold Spring Harbor Laboratory
4. Max Planck Institute

7. What was Francis Crick’s main field of study before DNA?

1. Physics
2. Chemistry
3. Biology
4. Medicine

8. What nationality was Francis Crick?

1. British
2. American
3. Canadian
4. Australian

9. What nationality was James Watson?

1. British
2. American
3. Canadian
4. Australian

10. What did Watson and Crick suggest DNA’s structure explained?

1. Energy transfer
2. Genetic inheritance
3. Protein synthesis
4. Cell division

11. Which of the following is NOT a component of DNA identified by Watson and Crick?

1. Deoxyribose sugar
2. Phosphate
3. Nitrogenous bases
4. Amino acids

12. In which year did Watson and Crick publish their model of DNA?

1. 1950
2. 1953
3. 1956
4. 1961

13. Who else contributed to the discovery of DNA but didn’t win the Nobel Prize?

1. Rosalind Franklin
2. Erwin Chargaff
3. Linus Pauling
4. Max Perutz

14. Which base pairs with Thymine (T) in DNA?

1. Guanine (G)
2. Adenine (A)
3. Cytosine (C)
4. Uracil (U)

15. Which base pairs with Cytosine (C) in DNA?

1. Thymine (T)
2. Adenine (A)
3. Guanine (G)
4. Uracil (U)