M.Sc. DEGREE EXAMINATION, APRIL 2016
Second Semester
Zoology
GENETICS
(CBCS 2014 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 2 20)
Answer all questions.
All questions carry equal marks.
1. Polygenic inheritance.
2. Multiple alleles.
3. Aneuploidy.
4. Barr bodies.
5. Mutation.
6. DNA recombination.
7. Polymorphism.
8. Neo-Lamarckism.
9. Molecular clocks.
10. Gene pool and gene frequency.
Sub. Code
509202
RW-10836
2
Sp2
Part B 5 25)
Answer all questions choosing either or
All questions carry equal marks.
11. Write an account on mendelian principles.
Or
Describe the sex linked inheritance.
12. Write short notes on the following
Euploidy
Polyploidy.
Or
Describe the phenomenon of linkage by giving
suitable examples.
13. Describe the regulation of gene expression in
prokaryotes.
Or
Differentiate between repressors and inducers.
14. Briefly discuss about the theory of natural selection.
Or
What is genetic polymorphism?
15. Describe the molecular tools in phylogeny.
Or
Explain Hardy-Weinberg equilibrium.
RW-10836
3
Sp2
Part C 10 30)
Answer any three questions.
All questions carry equal marks.
16. Give an account on sex determination in man with
suitable examples.
17. Discuss about the gene mapping.
18. Describe the regulation of gene expression in eukaryotes.
19. What is Neo-Lamarcism? Add notes on it.
20. Explain molecular divergence and molecular clocks.