Quiz: How Much You Know About DNA and Its Structure?

Questions : 16 | Total Attempts: 766 | Recent Updated: 21-Aug-2022

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Deoxyribonucleic acid or DNA is a polymer of deoxyribonucleotides and it is usually double-stranded. It has a double helix structure and it acts as the genetic material in most organisms. DNA carries genetic information.DNA structure is often divided into four different levels primary, secondary, tertiary, and quaternary. So take this quiz and know more about DNA and its structure.

1. Who identifies the DNA as an acidic substance present in the nucleus?

A. James Watson

B. Friedrich Meischer

C. Francis Crick

D. Maurice Wilkins

2. Who gives the double helix model for the structure of DNA?

A. James Watson

B. Francis Crick

C. Both of these

D. Maurice Wilkins

3. DNA found in ...

A. Chromosomes

B. Mitochondria

C. Choloroplasts

D. None of these

4. Which one of the following is not the main component of DNA?

A. Deoxyribose

B. Base

C. Phospahate

D. Fibers

5. Which of the following is made of a 6 member ring, fused to a 5 member ring?

A. Pyrimidines

B. Purines

C. Both of these

D. None of these

6. Which of the following is pyrimidines?

A. Thymine

B. Adenine

C. Guanine

D. None of these

7. Nucleotides are linked together by a covalent bond called .....

A. Phosohodiester Linkage

B. Sulphur Linkage

C. Iron Linkage

D. All of these

8. Who discovered that the proportions of bases in DNA depend on the species the DNA comes from?

A. Chargaff

B. James

C. Watson

D. Wilkins

9. B-DNA is a .....

A. Alpha Helix

B. Beta Helix

C. Gamma Helix

D. None of these

10. What is the meaning of the Alpha helix?

A. It is right handed

B. It is clockwise

C. It is spiral

D. All of these

11. Which type of DNA observed when less water is present?

A. B-DNA

B. Z- DNA

C. A- DNA

D. None of these

12. In which type of DNA show the left-handed helix?

A. B- DNA

B. A-DNA

C. Z-DNA

D. All of these

13. How MAny Base pair is found in A- DNA?

A. 10

B. 11

C. 12

D. 13

14. Distance between adjacent bases in Z- DNA is ....

A. 0.34 nm

B. 0.33 nm

C. 0.23 nm

D. 0.38 nm

15. Supercoiling of DNA ...... space and allows for much more DNA to be packaged.

A. Reduced

B. Increased

C. Both of these

D. None of these

16. In eukaryotes, DNA associated with ...

A. Fat

B. Lipid

C. Protein

D. None of these

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Quiz: How Much You Know About DNA and Its Structure?

Questions Excerpt

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