LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.Sc. DEGREE EXAMINATION – ADV. ZOOLOGY & BIOTECHNOLOGY
FIRST SEMESTER – NOVEMBER 2010
ZO 1815 – ADVANCED EVOLUTIONARY BIOLOGY
Date : 03-11-10 Dept. No. Max. : 100 Marks
Time : 1:00 – 4:00
Part A
Answer ALL the questions. Each question carries 2 marks (10×2 = 20 marks)
- Comment on Agnostic period.
- Explain Germplasm theory.
- What are Gamma gardens?
- Define ‘atavism’.
- What are sibling species?
- Distinguish ‘living fossils’ from ‘fossils of the living being’.
- Comment on Narmada man.
- Mention any EIGHT vestigial organs.
- With one suitable example explain co-evolution.
- What is biochemical metamorphosis?
Part B
Answer any FOUR questions. Each question carries 10 marks (4×10 = 40 marks)
- Write notes on Darwinian principles.
- Explain evolutionary significance of gene mutations.
- Categorize animal colouration.
- Write notes on pre-adaptation.
- Describe the biological significance of Mesozoic and Coenozoic eras.
- ‘Hybridization is an evolutionary catalyst’ – Substantiate.
Part C
Answer any TWO questions. Each question carries 20 marks (2×20 = 40 marks)
- Elaborate the nature of fossils, conditions for fossilization and dating of fossils.
- Discuss the recent concepts of Biogenetic law.
- Write an essay on genetic polymorphism.
- Write notes on:
- origin of eukaryotes and
- contributions of any FOUR Neo Lamarckians.