| A: | Malaria is caused by a virus transmitted through the saliva of infected Anopheles mosquitoes. | 
| B: | Tuberculosis is a bacterial disease that primarily affects the lungs but can also spread to other organs. | 
| C: | AIDS is a genetic disorder that weakens the immune system over time. | 
Give below are two statements :
| Statement I: | When an infected female Anopheles mosquito bites, it releases gametocytes of plasmodium into the healthy person. | 
| Statement II: | The female Anopheles mosquito takes up sporozoites of Plasmodium with blood meal from an infected person, suffering from malaria. | 
In light of the above statements, choose the most appropriate answer from the options given below :
1. Statement I is correct but Statement II is incorrect. 
2. Statement I is incorrect but Statement II is correct.
3. Both Statement I and Statement II are correct. 
4. Both Statement I and Statement II are incorrect. 
| 1. | A rapid respiratory rate | 2. | High grade fever | 
| 3. | Chest pain | 4. | Pain abdomen | 
| I: | Salmonella typhi is a pathogenic bacterium which causes typhoid fever in human beings. | 
| II: | These pathogens generally enter the small intestine through food and water contaminated with them | 
| III: | The pathogen remains confined to the small intestine. | 
| IV: | Intestinal perforation and death may occur in severe cases. | 
| V: | Typhoid fever could be confirmed by Widal test. | 
| Statement I: | This is caused by the Annelid Wuchereria bancrofti. | 
| Statement II: | The condition is due to the blockage of deep veins by the adult worm. | 
| 1. | Only Statement I is correct | 
| 2. | Only Statement II is correct | 
| 3. | Both Statement I and Statement II are correct | 
| 4. | Both Statement I and Statement II are incorrect | 
| 1. | Aedes aegypti mosquito | 2. | A virus | 
| 3. | A bacterium | 4. | Prion | 
| Assertion (A): | Histamine is used to treat allergies. | 
| Reason (R): | Histamine is a vasoconstrictor. | 
| 1. | Both (A) and (R) are True and (R) correctly explains (A) | 
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A) | 
| 3. | (A) is True, (R) is False | 
| 4. | (A) is False, (R) is False | 
| I: | ‘memory’ of the immune system. | 
| II: | ability to distinguish between self and non-self. | 
| I: | are produced in humoral immune response | 
| II: | are produced in cell mediated immune response | 
| III: | are responsible for passive immunity |