M.Sc. DEGREE EXAMINATION, NOVEMBER 2017
First Semester
Botany
GENETICS, PLANT BREEDING AND BIOSTATISTICS
(CBCS 2014 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Multiple alleles.
2. Punnett square.
3. IS Element.
4. Acquired mutation.
5. Genetic drift.
6. Point mutation.
7. Hybrid vigor.
8. Polyploidy.
9. ANOVA.
10. T-test.
Sub. Code
4MBO1C4
AFF-4895
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sp4
Part B x 5 25)
Answer all questions, choosing either or
11. Explain Incomplete dominance with an example.
Or
Discuss in detail the sex determination in plants.
12. Explain the biochemical mutants in bacteria.
Or
Write brief note on physical mutagens.
13. Explain inheritance of mitochondrial DNA.
Or
List out the genetic chromosomal abnormalities.
14. Describe the method of plant breeding by vegetative
propagation.
Or
Discuss the role of polyploidy in plant improvement.
15. Write an account on graphical representation of
data.
Or
Write notes on probability of distribution.
Part C x 10 30)
Answer any three questions.
16. Explain the Law of independent assortment in dihybrid
cross.
17. Discuss the regulation of gene expression in Eukaryotes.
AFF-4895
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18. Describe Cytoplasmic inheritance of Kappa particles in
Paramecium.
19. Discuss the achievement made on Rice breeding in India.
20. Write an account on significance of Regression and
correlation analysis.
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