Description

BZYET 141 BSCG ignou assignment 2024

Course : BSCG
Session 2024
Submission date : This assignment is valid from 1st January, 2024 to 31st December, 2024.

1. Define the following terms:
i) Epitope
ii) Autoimmunity
iii) Heavy chain of antibody
iv) Agglutination
(2½×4=10)
2. Write short notes on the following:
i) Phagocytosis
ii) Bursa of Fabricius
iii) RNA Vaccines
iv) Opsonisation

BZYET 141 BSCG ignou assignment 2024

3. Differentiate between the following pairs of terms:
i) MHC class-I and II molecules
ii) B cell and T cell
iii) Active immunity and Passive immunity
iv) Allergy and Hypersensitivity
(2½×4=10)
4. a) Write any five function of macrophage.
b) How does antigen lysis occur by alternate pathway of the complement
system? Discuss in brief.
(5×2=10)
5. Explain any three immunological techniques with suitable examples and
diagram.

BZYET 141 BSCG ignou assignment 2024

6. Discuss different cytokines that act as mediators of innate and adaptive
immune systems.
(10)
7. a) Describe the major events of the B-Cell maturation brief.
b) Explain the neutralization mechanism of bacteria by antibodies.
(5×2=10)
8. a) What are the different types of hypersensitivity according to Gell and
Coombs?
b) Explain the principles of ELISA (Enzyme Linked Immunosorbent
Assay).
(5×2=10)
4
9. a) Define antibodies and draw the structure of immunoglobulin with
labelled diagram.
b) Explain the significance of the different classes of antibodies.
(5×2=10)
10. Describe the structure of bone marrow with a neat and well-labelled
diagram.