LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
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M.Sc. DEGREE EXAMINATION – ZOOLOGY
FIRST SEMESTER – APRIL 2008
ZO 1809 – ADVANCED EVOLUTIONARY BIOLOGY
Date : 03/05/2008 Dept. No. Max. : 100 Marks
Time : 1:00 – 4:00
SECTION-A
Answer ALL the questions (10 × 2 = 20)
- The Big Bang theory is the most widely accepted one – Justify
- What do you mean by atavism?
- Comment on sibling species
- What are Gamma gardens?
- Characterise the ‘Agnostic period’
- Differentiate ‘living fossils’ from ‘fossils of the living beings’
- List down any 8 vestigial organs in Homo sapiens
- Distinguish transition from transversion
- What do you mean by eutelegenesis?
- Comment on Narmada man
SECTION-B
Answer any FOUR of the following (4 × 10 = 40)
- Write notes on Neo-Lamarckism
- With a suitable example explain biochemical recapitulation and biochemical metamorphosis
- Trace the origin of eukaryotes
- Explain the evolutionary importance of preadaptation
- Describe the nature of fossils
- Enumerate the impact of gene mutations on survival and reproduction
SECTION-C
Answer any TWO of the following (2 × 20 = 40)
- Write an essay on Recapitulation theory.
- Natural selection operates in modern mankind – Justify
- Discuss speciation and isolating mechanisms
- Describe genetic polymorphism with suitable examples
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