DISTANCE EDUCATION
M.Sc. (Zoology) DEGREE EXAMINATION, MAY 2017.
GENETICS AND EVOLUTION
Time Three hours Maximum 100 marks
SECTION A — 8 40 marks)
Answer any FIVE of the following questions,
each in about 300 words.
1. Discuss the advantages of phylogenetic trees and add
notes of cluster analysis.
2. Discuss various mutations at molecular level.
3. Write short notes on recapitulation.
4. Write short notes on the following:
Monohybrid
Dihybrid
Pedigree analysis.
5. How zebrafish genetically control its embryonic
development?
6. What is molecular phylogenetics and evolution? Explain.
7. Explain in detail about adaptation pattern at population
level.
8. Give an account on evolution of gene families.
Sub. Code
13
DE-753
2
Sp 1
SECTION B — × 15 60 marks)
Answer any FOUR of the following questions, each in about
500 words.
9. Briefly explain the genetic control of embryonic
development in Coenorhabditis and zebrafish.
10. Give an account on the genetic and non-genetic
variations.
11. Differentiate Euchromatin and Heterochromatin.
12. What is mutation? Discuss the various types of mutation.
13. What is speciation? Add notes on isolating mechanisms.
14. Give an account on sequential expression of genes with
examples.
15. Write short notes on any three of the following:
Frame-shift mutation
Aneuploidy
Heterochromatin
Modes of speciation
Clustal analysis.