Q.74 Match the disease in Group I with their corresponding organism in Group II
| Group I | Group II |
|---|---|
| P. African sleeping sickness
Q. Rocky mountain spotted fever R. Mumps S. Filariasis |
I. Rubulavirus
II. Trypanosoma brucei III. Wuchereria bancrofti IV. Rickettsia rickettsii V. Leishmania donovani |
Options:
- (A) P-III, Q-V, R-II, S-I
- (B) P-II, Q-I, R-III, S-IV
- (C) P-II, Q-IV, R-I, S-III
- (D) P-I, Q-V, R-II, S-IV
Introduction
Questions that ask to match diseases with their corresponding organisms are extremely common in NEET, AIIMS, CUET, and Class 12 Biology examinations. These questions test your understanding of human health and disease, including protozoan, bacterial, viral, and helminth infections.
In this article, we solve the given question in detail, explain every disease–organism pair, and carefully analyze all answer options to identify the correct one with confidence.
Correct Matching with Detailed Explanation
P. African Sleeping Sickness → II. Trypanosoma brucei
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African sleeping sickness (African trypanosomiasis) is a protozoan disease.
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It is caused by Trypanosoma brucei.
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Transmitted by the tsetse fly.
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Affects the central nervous system, leading to sleep disturbances and coma.
✔ Correct match: P-II
Q. Rocky Mountain Spotted Fever → IV. Rickettsia rickettsii
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Rocky Mountain spotted fever is a bacterial disease.
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Caused by Rickettsia rickettsii.
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Transmitted by ticks.
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Characterized by fever, rash, and vascular damage.
✔ Correct match: Q-IV
R. Mumps → I. Rubulavirus
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Mumps is a viral disease.
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Caused by Rubulavirus, a paramyxovirus.
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Affects salivary glands, especially parotid glands.
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Prevented by MMR vaccine.
✔ Correct match: R-I
S. Filariasis → III. Wuchereria bancrofti
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Filariasis is a helminthic (worm) disease.
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Caused by Wuchereria bancrofti.
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Transmitted by mosquitoes.
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Leads to elephantiasis due to lymphatic blockage.
✔ Correct match: S-III
Final Correct Combination
P-II, Q-IV, R-I, S-III
Correct Answer Option
Option (C)
Why Other Options Are Incorrect
Option (A)
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Incorrectly links mumps with Trypanosoma, which causes sleeping sickness, not viral diseases.
Option (B)
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Associates Rocky Mountain spotted fever with Rubulavirus, which is a viral agent for mumps.
Option (D)
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Matches African sleeping sickness with Rubulavirus, which is biologically incorrect.
Quick Revision Table (Highly Exam-Friendly)
Disease Causal Organism African sleeping sickness Trypanosoma brucei Rocky Mountain spotted fever Rickettsia rickettsii Mumps Rubulavirus Filariasis Wuchereria bancrofti
Conclusion
The ability to correctly match diseases with their causative organisms is essential for scoring well in biology entrance exams. This question combines protozoan, bacterial, viral, and helminth diseases, making it a perfect test of conceptual clarity. Remembering these standard pairs allows quick elimination of incorrect options and accurate selection of the correct answer.
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