LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – ZOOLOGY

DE 38

SIXTH SEMESTER – APRIL 2008

Z 615 – ORGANIC EVOLUTION

 

 

 

Date : 26/04/2008                Dept. No.                                        Max. : 100 Marks

Time :  1:00 – 4:00

SECTION-A

Answer all question                                                                             10 x 2 = 20

1.Define the term homologous organ. Give one example.

2.What do you mean by coprolites?

3.Write down any four vestigial organs in man.

4.Define ‘Biogenetic law’

5. Distinguish organic evolution from inorganic evolution.

6.Mention the contributions of Hugo de Vries.

7.Comment on Eohippus.

8.Define Germplasm theory.

9.Chaemeleon is an arboreal animal-Justify.

10.What is Batesian mimicry?

SECTION-B

Answer any Four                                                                                          4 x 10 =40

11. Write notes on animal colouration.

12.Explain analogy with two examples

13.Describe Darwinism.

14.List down the summary of events in the evolution of modern horse Equus.

15.Write notes on zoogeographical realms.

16.Explain evolutionary convergence and parallelism.

SECTION-C

Answer any Two                                                                                           2 x 20 = 40

17.Elaborate Lamarckian principles and Neo-Lamarckism.

18. Write an essay on the role of isolating mechanisms.

19.Trace evidences from physiology and biochemistry in favour of the theory of organic

evolution.

20.Discuss chemical origin of life.

 

 

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