LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
B.C.A. DEGREE EXAMINATION – ADV. ZOOLOGY
FOURTH SEMESTER – APRIL 2011
CA 35024500 - EMBROYOLOGY AND EVOLUTION
Date : 12-04-2011
Time : 1:00 - 4:00
Dept. No.
Max. : 100 Marks
Section –A
Answer all the questions
(10X2=20)
1. Define spermatogenesis.
2. What is alecithal egg?
3. Define fertilization.
4. What is blastula?
5. Comment on morphogenetic movements.
6. Define Abiogenesis.
7. Explain Germplasm theory.
8. What are fossils?
9. Comment on mimicry.
10. What is adaptive radiation?
Section –B
Answer any four of the following
(4X10=40)
11. Describe the ultrastructure of a spermatozoan.
12. Write notes on the planes of cleavage.
13. Classify the chordate eggs.
14. Write notes on mutation theory of Devries.
15. Give an account on Lamarckism.
16. Explain animal colouration and mimicry.
Section –C
Answer any two of the following
(2X20=40)
17. Give an account on Oogenesis.
18. Write an essay on origin and development of foetal memebranes in chick.
19. Explain Darwinism.
20. Give an account on Isolating mechanism.
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