LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

DE 20

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)

1. The Big Bang theory is the most widely accepted one – Justify
2. What do you mean by atavism?
3. Comment on sibling species
4. What are Gamma gardens?
5. Characterise the ‘Agnostic period’
6. Differentiate ‘living fossils’ from ‘fossils of the living beings’
7. List down any 8 vestigial organs in Homo sapiens
8. Distinguish transition from transversion
9. What do you mean by eutelegenesis?
10. Comment on Narmada man

SECTION-B

Answer any FOUR of the following                                                  (4 × 10 = 40)

1. Write notes on Neo-Lamarckism
2. With a suitable example explain biochemical recapitulation and biochemical metamorphosis
3. Trace the origin of eukaryotes
4. Explain the evolutionary importance of preadaptation
5. Describe the nature of fossils
6. Enumerate the impact of gene mutations on survival and reproduction

SECTION-C

Answer any TWO of the following                                                  (2 × 20 = 40)

1. Write an essay on Recapitulation theory.
2. Natural selection operates in modern mankind – Justify
3. Discuss speciation and isolating mechanisms
4. Describe genetic polymorphism with suitable examples

 

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