Question

Match the diseases in Group I with their causative organisms in Group II 
       Group I                                Group II 
(P) Syphilis                         (1) Shigella dysenteriae 
(Q) Bacillary dysentery       (2) Bordetella pertussis 
(R) Gas gangrene               (3) Treponema pallidum 
(S) Whooping cough         (4) Clostridium perfringens 
 

• A. P-2, Q-1, R-4, S-3
• B. P-4, Q-3, R-1, S-2
• C. P-2, Q-3, R-1, S-4
• D. P-3, Q-1, R-4, S-2

Hint:

Each disease is caused by specific microorganisms. Remember the names of common bacterial pathogens for diseases like syphilis, dysentery, gas gangrene, and whooping cough.

Answer 1

The Correct Option is D

Step 1: Understanding the causative organisms. 
- Syphilis is caused by Treponema pallidum (P-3). 

- Bacillary dysentery is caused by Shigella dysenteriae (Q-1). 

- Gas gangrene is caused by Clostridium perfringens (R-4). 

- Whooping cough is caused by Bordetella pertussis (S-2). 
 

Step 2: Analyzing the options. 
(A) P-2, Q-1, R-4, S-3: Incorrect — Syphilis is caused by Treponema pallidum, not Shigella. 
(B) P-4, Q-3, R-1, S-2: Incorrect — The pairing of syphilis with Clostridium is incorrect. 
(C) P-2, Q-3, R-1, S-4: Incorrect — The pairings are incorrect. 
(D) P-3, Q-1, R-4, S-2: Correct — This correctly matches the diseases with their causative organisms. 
 

Step 3: Conclusion. 
The correct answer is (D) P-3, Q-1, R-4, S-2.