M.Sc. DEGREE EXAMINATION, NOVEMBER 2017
Third Semester
Zoology
EVOLUTION
(CBCS 2014 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Lamarckism
2. Mutation
3. Homologous Structure
4. Fossil
5. Natural Selection
6. Variation
7. Batesian Mimicry
8. Adaptive Radiation
9. Radio carbon dating
10. Neanderthal Man
Sub. Code
4MZO3C3
AFF-4923
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Wk ser
Part B x 5 25)
Answer all questions.
11. Explain on the synthetic theory of evolution.
Or
Write short notes on mutation theory.
12. How anatomical structures can be used as an
evidence of evolution?
Or
Elucidate the universal tree of life.
13. Explain the various sources of variability.
Or
Give an account on reproductive isolating
mechanism.
14. Write notes on species concept.
Or
Explain the process of co-evolution giving suitable
example.
15. What is a molecular clock and how is it used to
show evolutionary relationship?
Or
What are the two methods used to date fossils?
Part C x 10 30)
Answer any three questions.
16. Write an essay on various theories of origin of life.
17. How do we use embryology and palaentology as an
evidence of evolution?
AFF-4923
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Wk ser
18. Explain the processes of genetic variation and natural
selection.
19. Describe the types of mimicry and colouration giving
suitable examples.
20. Elucidate geological time scale.
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