LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
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B.Sc. DEGREE EXAMINATION – ZOOLOGY
SIXTH SEMESTER – APRIL 2007
Z 615 – ORGANIC EVALUTION
Date & Time: 26/04/2007 / 9:00 – 12:00 Dept. No. Max. : 100 Marks
Part A (Answer all) 10 x 2 = 20
- What are vestigial organs? Give two examples.
- Define serial homology.
- What are coprolites?
- Name the biological realms of the world.
- Define germ plasm theory.
- What is allopatric speciation?
- Comment on Mullerian mimicry.
- State Biogenetic law.
- Comment on Eohippus.
- What do you mean by scansorial adaptation?
Part B (Answer any four) 4 x 10 = 40
- Explain Lamarckian principles.
- Describe the concept of struggle for existence as explained by Darwin.
- Explain sexual selection theory.
- Write notes on animal colouration.
- Comment on precipitin tests.
- List down the summary of events in equine evolution.
Part C (Answer any two) 2 x 20 = 40
- Write an essay on speciation.
- Discuss morphological evidences in favour of the theory of organic evolution.
- Trace the chemical origin of life and explain the origin of Eukaryotes.
- Illustrate the adaptive radiation in placental mammals.
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