Biology
Assertion (A): Diseases like cowpox, smallpox, chickenpox are all caused by the same virus.
Reason (R): The vaccine prepared for smallpox contains the fully virulent, living 'cowpox virus.
- Both A and R are true.
- Both A and R are false.
- A is true and R is false.
- A is false and R is true.
Diseases
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Answer
A is false and R is true.
Explanation — Diseases like cowpox, smallpox, chickenpox are not caused by the same virus. Cowpox virus and smallpox viruses are similar but not the same. Chickenpox is also caused by a different virus.
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