2021/TDC (CBCS)/EVEN/SEM/
ZOOHCC-602T/017
TDC (CBCS) Even Semester Exam.,
September—2021
ZOOLOGY
( 6th Semester )
Course No. : ZOOHCC-602T
( Evolutionary Biology )
Section-A
Any ten of the following question : 2x10=20
1. Write a brief note on the theory of abiogenesis.
2. Write briefly the Urey-Miller experiment on the proof of prebiotic
synthesis of organic molecules.
3. Write a brief note on Coacervates.
4. Briefly discuss the endosymbiotic origin of eukaryotes.
5. Briefly explain homology with an example.
6. What are analogous organs? Explain brieflywith an example.
7. Define geological time scale. Mention the dominant plant and animal
groups in Cenozoic era.
8. Write a brief note on transitional forms with an example.
9. Define gene pool. How the fluctuation in the size of gene pool takes
place?
10. What are the conditions for the Hardy-Weinberg equilibrium?
11. Write a brief note on allele frequency.
12. Mention the different factors responsible for genetic variability in a
population.
13. Write a brief note on genetic landscape.
14. Write a brief note on biological species concept.
15. Briefly discuss allopatric speciation.
16. Write a brief note on sympatric speciation.
17. Distinguish between divergent evolution.and convergent evolution
18. Write a brief note on Dryopithecus.
19. Mention the characteristics of Ramapithecus.
20. Write a brief note on Homo erectus.
SECTION—B
Answer any five of the following questions : 6x5=30
21. Discuss the basic postulates of Darwinism with illustration. Add a
note on the evidences that support Darwinism. 4+2=6
22. What was the basic principle of Lamarckism? Explain the evolutionary
theories of Lamarck with proper example. 2+4=6
23. Define fossil. Discuss the different types of fossils. Add a note on
the determination of age of fossils. 1+3+2=6
24. Define variation. Write a brief note on somatic and germinal
variations. Discuss the different sources of variation. 14243=6
25. State Hardy-Weinberg law of equilibrium. Explain with suitable example
and illustrations. 1+3+2=6
26. Define genetic drift. Explain the bottleneck effect and Founder effect
with suitable illustrations. 1+3+2=6
27. Define microevolution. Discuss the mechanism of microevolution with
suitable examples. SPR aT 1+3+2=6
28. Define adaptive radiation. - Explain the phenomenon of adaptive
radiation with proper example. | 2+4=6
29. Discuss the special features of primates. Add a ‘note on some
principal scientists associated with the study of human evolution. 4+2=6
30. Discuss in detail the different evolutionary trends during evolution
of "horse with suitable illustrations. 4+2=6
