M.Sc. DEGREE EXAMINATION, NOVEMBER 2017
Second Semester
Botany
ANATOMY, EMBRYOLOGY AND MORPHOGENESIS
(CBCS 2014 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Apical meristem.
2. Companion cells.
3. Trichome.
4. Periderm.
5. Pollen tetads.
6. Bisporic embryo sac.
7. Embryogenesis.
8. Polyembryony.
9. Polarity.
10. Differentiation.
Sub. Code
4MBO2C2
AFF-4899
2
ser
Part B x 5 25)
Answer all questions, choosing either or
11. Comment on theories of shoot apex organization.
Or
Define cambium. Explain its types and role in
budding and grafting.
12. Describe the primary structure of a dicot root.
Or
Describe the different types of stomata.
13. Give an illustrated account of microsporogenesis.
Or
Write short notes on nutrition of embryosac.
14. Discuss about the physiology of endosperms.
Or
Describe the structure and development of cellular
endosperm.
15. Expound Turing's diffusion reaction theory.
Or
Define galls. Explain their importance in
morphogenesis.
Part C x 10 30)
Answer any three questions.
16. Give an account on structural diversity and phylogenetic
development of xylem.
17. Write an essay on root stem transition with suitable
diagrams.
AFF-4899
3
ser
18. Explain the different methods used to overcome sexual
incompatibility.
19. Describe the development of dicot embryo giving suitable
diagrams.
20. Analyse the nuclear transplantation experiments carried
out in Acetabularia and its importance.
————————