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The regression in size of which organ is...

The regression in size of which organ is associated with reduction in the power of defence against invasion by pathogens with ageing?

A

Bone marrow

B

Thymus

C

Spleen

D

Peyer's patches

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AAKASH INSTITUTE ENGLISH-TEST 2-EXERCISE
  1. Choose the incorrect statement.

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  2. The antigen-binding site of the antibody molecule is called "paratope"...

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  3. The regression in size of which organ is associated with reduction in ...

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  4. Read the following statements. (A) B-lymphocytes produce an army of pr...

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  5. Mark the correct option.

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  6. If a person is infected with deadly pathogen/toxin against which quick...

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  7. Choose the correct option with respect to the lymphoid organs

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  8. Which of the following set of diseases is caused by bacteria? (a) Dyse...

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  9. Histamine, serotonin are secreted by mast cells upon activation by (a)...

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  10. Appearance of dry, scaly lesions on various body parts such as nails a...

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  11. Select one of the following correct statement in relation to malaria.

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  12. Disease whose spread can be biologically controlled by larvivorous fis...

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  13. Sperm-

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  14. Lungs are not affected in which of the following diseases?

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  15. Choose the odd one out w.r.t. faeco-oral route of transmission of path...

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  16. Which of the following is an incorrect statement?

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  17. Mark the odd one out w.r.t autoimmune diseases.

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  18. The pathogen transmitted through female mosquito causing chronic infla...

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  19. Antibody is represented as H2L2 as each of its molecule has four polyp...

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  20. "It is a stochastic process based on chance events in nature and chanc...

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