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Diseases in Humans and Immunity, Class 12 Biology NCERT Solutions

1. There will be total 20  MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying.

1. Antigenic determinant sites bind to which portion of an antibody molecule?
(1) Light chain (2) Heavy chain
(3) Intermediate chains (4) Plasma cells
 
 
 
 

Question 1 of 20

2. Anti venom against snake poison contains:
 
 
 
 

Question 2 of 20

3. Formation of antibodies within our body is called:
 
 
 
 

Question 3 of 20

4. Antibodies are produced by:
 
 
 
 

Question 4 of 20

5. Japanese encephalitis is transmitted by
 
 
 
 

Question 5 of 20

6. The sporozoites that cause infection when a female Anopheles mosquito bites a human being are formed in:
 
 
 
 

Question 6 of 20

7. The organisms which cause diseases in plants and animals are called:
 
 
 
 

Question 7 of 20

8. Where will you look for the sporozoites of the malarial parasite?
 
 
 
 

Question 8 of 20

9. Which of the following vaccines are injected at the age of 1 Months?
 
 
 
 

Question 9 of 20

10. Which of the following is the unit of immune system?
 
 
 
 

Question 10 of 20

11. Both sickle cell anaemia and Huntington’s chorea are:
 
 
 
 

Question 11 of 20

12. Immuno-deficiency syndrome could develop due to
 
 
 
 

Question 12 of 20

13. The function of IgE is
 
 
 
 

Question 13 of 20

14. The chemical test that is used for diagnosis of typhoid is:
 
 
 
 

Question 14 of 20

15. The disease chikunguniya is transmitted by
 
 
 
 

Question 15 of 20

16. Antigen-binding site in an antibody, is found between:
 
 
 
 

Question 16 of 20

17. Which immunoglobulin is largest in size?
 
 
 
 

Question 17 of 20

18. Short lived immunity acquired from mother to foetus across placenta or through mother’s milk to the infants is
 
 
 
 

Question 18 of 20

19. Each immunoglobin has two heavy chains and two light chains, the antigen binding is present in:
 
 
 
 

Question 19 of 20

20. Which of the following is not a lymphoid tissue?
 
 
 
 

Question 20 of 20


 

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