Question

Match column I with column II:
A. F. Meischer
B. Griffith
C. Hershey and Chase
D. Watson and Crick
Match with the following:
I. DNA double helix
II. Nuclein
III. S. pneumoniae
IV. Bacteriophages
Choose the correct answer from the options given below:

• A. A-III, B-II, C-IV, D-I
• B. A-II, B-IV, C-III, D-I
• C. A-II, B-I, C-IV, D-III
• D. A-II, B-III, C-IV, D-I

Hint:

F. Meischer: Nuclein (DNA).
Griffith: S. pneumoniae transformation.
Hershey and Chase: Bacteriophages.
Watson and Crick: DNA double helix.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Different scientists contributed to the discovery of DNA and its role.
We need to match each scientist with their contribution.

Step 2: Key Formula or Approach:
No specific formula.
Need to know the contributions of each scientist.

Step 3: Detailed Explanation:
F. Meischer discovered "Nuclein" (DNA) (A-II).
Griffith worked with S. pneumoniae (transformation) (B-III).
Hershey and Chase used bacteriophages (C-IV).
Watson and Crick proposed the DNA double helix structure (D-I).
Thus, A-II, B-III, C-IV, D-I is the correct matching.

Step 4: Final Answer:
The correct matching is A-II, B-III, C-IV, D-I.
Hence, the correct option is (D).