N A L A N D A O P E N U N I V E R S I T Y
M.Sc. Botany, Part-I
PAPER-VII
(Cell Biology)
Annual Examination, 2016
Time 3 Hours. Full Marks 80
Answer any Five Questions. All questions carry equal marks.
1. Give an experimental evidence to support biochemical theory of origin of life.
2. Describe fluid mosaic model to explain ultra structure of a membrane. Why it is universally
accepted
3. State and explain the origin and function of Golgi bodies.
4. Describe ultra structure of Chloroplast. What are the specific functions of different structural
components
5. Write short notes on any Two of the following
Nucleosome Lampbrush chromosome
Polytene chromosome Histone proteins
6. Describe with suitable diagram replication of DNA and the mechanism involved.
7. Write short notes on any Two of the following
Chargaff's rule
Experiment of Messelson and Stahl
Z-DNA
The concept of central dogma
8. Write short notes on any Two of the following
Ames test
Chemotherapy
Prevention of cancer
Hormone therapy
9. Give an illustrated account of mitotic cell division. What is its significance
10. Write short notes on any Two of the following
Ecological amplitude
Cell interaction
Apoptosis
Gene amplification