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Question
Assertion :Poliomyelitis is a highly infectious viral disease of infants and children. Reason: Its causal agent is a very small RNA containing virus, Polio virus.
Assertion :Poliomyelitis is a highly infectious viral disease of infants and children. Reason: Its causal agent is a very small RNA containing virus, Polio virus.
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Solution
The correct option is B if both Assertion and Reason are true but Reason is not the correct explanation of Assertion
Poliomyelitis is a highly infectious viral disease of infants and
children that may attack adults also. It is caused by small
RNA containing virus, Polio virus and is transmitted through faeces,
urine and nasal secretions contaminating food, or drinks either directly
or through flies. This virus causes inflammation of grey matter of the
spinal cord, inability of head to bend forward and stiffness of the
neck. It also destroys motor nerve cells in the spinal cord. Muscles
fail to work and shrink due to lack of nerve impulfes. This causes
paralysis of limbs.
So, the correct
answer is 'if both Assertion and Reason are true but Reason is not the correct explanation of Assertion'.
Poliomyelitis is a highly infectious viral disease of infants and
children that may attack adults also. It is caused by small
RNA containing virus, Polio virus and is transmitted through faeces,
urine and nasal secretions contaminating food, or drinks either directly
or through flies. This virus causes inflammation of grey matter of the
spinal cord, inability of head to bend forward and stiffness of the
neck. It also destroys motor nerve cells in the spinal cord. Muscles
fail to work and shrink due to lack of nerve impulfes. This causes
paralysis of limbs.
So, the correct answer is 'if both Assertion and Reason are true but Reason is not the correct explanation of Assertion'.
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