Assertion: Amoebic dysentery spreads through faeco-oral route.
Reason: Houseflies act as mechanical carriers for its spread.
 
1. Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
2. Both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
3. Assertion is true but Reason is false.
4. Both Assertion and Reason are false.

Subtopic:  Amoebiasis |
From NCERT
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Assertion: Active immunity is slow and takes time to show its full effect.
Reason: Active immunisation leads to formation of antibodies and memory B-cells and T-cells.
1. Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
2. Both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
3. Assertion is true but Reason is false.
4. Both Assertion and Reason are false.
Subtopic:  Active & Passive Immunity |
From NCERT
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Assertion: Plasmodium falciparum causes malignant malaria which, if not treated, can be fatal.
Reason: Plasmodium falciparum directly resides in nervous tissue.
1. Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
2. Both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
3. Assertion is true but Reason is false.
4. Both Assertion and Reason are false.
Subtopic:  Common Cold & Malaria Introduction | Treatment & Life Cycle of Malaria |
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Assertion: Nowadays. allergies and asthma are more common in children of metro cities.
Reason: Lowered immunity and increased sensitivity to the environment due to prevalent life style and city pollution are responsible factors.
1. Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
2. Both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
3. Assertion is true but Reason is false.
4. Both Assertion and Reason are false.
 
Subtopic:  Allergies & Autoimmunity |
 88%
From NCERT
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Assertion: Metastatic cells have lost the property of contact inhibition.
Reason: Oncogenes in normal cells promote the secretion of growth factors.
1. Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
2. Both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
3. Assertion is true but Reason is false.
4. Both Assertion and Reason are false.
Subtopic:  Cancer |
From NCERT
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Assertion: During HIV infection, the patient becomes immuno-deficient.
Reason: HIV Virus attacks helper T-lymphocytes and decreases their cell count.
1. Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
2. Both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
3. Assertion is true but Reason is false.
4. Both Assertion and Reason are false.
Subtopic:  AIDS |
 91%
From NCERT
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Assertion: Techniques like CT and MRI are very useful in detection of cancers of internal organs.
Reason: Techniques of molecular biology can also be used to detect diseases having genetic susceptibility.
1. Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
2. Both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
3. Assertion is true but Reason is false.
4. Both Assertion and Reason are false.
Subtopic:  Cancer |
 77%
From NCERT
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Assertion: Adolescence is a very vulnerable phase of mental and psychological development of an individual.
Reason: Addiction to drugs or alcohol is very common during adolescence.
1. Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
2. Both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
3. Assertion is true but Reason is false.
4. Both Assertion and Reason are false.
Subtopic:  Drugs & Alcohol Abuse |
 50%
From NCERT
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Assertion: Nicotine in tobacco is a sympathomimetic compound.
Reason: Nicotine stimulates the release of adrenaline into blood.
1. Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
2. Both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
3. Assertion is true but Reason is false.
4. Both Assertion and Reason are false.
Subtopic:  Drugs & Alcohol Abuse |
 58%
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Assertion: With time, there is greater intake and addiction of drugs among addicts.
Reason: With repeated use of drugs, tolerance level of receptors declines.
1. Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
2. Both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
3. Assertion is true but Reason is false.
4. Both Assertion and Reason are false.
Subtopic:  Drugs & Alcohol Abuse |
 59%
From NCERT
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