LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
B.Sc. DEGREE EXAMINATION – ZOOLOGY
SIXTH SEMESTER – APRIL 2008
Z 615 – ORGANIC EVOLUTION
Date : 26/04/2008 Dept. No. Max. : 100 Marks
Time : 1:00 – 4:00
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’
- 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?
Answer any Four 4 x 10 =40
- Write notes on animal colouration.
12.Explain analogy with two examples
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.
Answer any Two 2 x 20 = 40
17.Elaborate Lamarckian principles and Neo-Lamarckism.
- Write an essay on the role of isolating mechanisms.
19.Trace evidences from physiology and biochemistry in favour of the theory of organic
20.Discuss chemical origin of life.