Wednesday, February 3, 2016

ANGRA University: M.Sc CYTOLOGY, GENETICS AND PLANT BREEDING 2010 Question Paper

Question Paper asked in previous years for Acharya N.G. Ranga Agricultural University
QP Code: DBOT 03
M.Sc. DEGREE EXAMINATION, JUNE 2010.
First Year
Botany
Paper III — CYTOLOGY, GENETICS AND PLANT BREEDING
Time : Three hours Maximum : 100 marks
SECTION A — (5 x 8 = 40 marks)
Answer any FIVE questions.
1. Nucleolus.
2. Karyotype analysis.
3. Reversions.
4. Evolution of major crop studied by you.
5. Linkage major.
6. Reduced mutagenesis.
7. Hybridization.
8. Clonal selection.

SECTION B — (4 x 15 = 60 marks)
Answer ALL questions.
9. (a) Describe the structure of chromosome and packing of DNA.
Or
(b) Write an essay on various banding techniques.
10. (a) Explain numerical alterations in chromosomes.
Or
(b) Give an elaborate account of allopolyploids.
11. (a) Describe chromosome mapping in eukaryotes.
Or
(b) Enumerate the salient features of cytoplasmic inheritance.

12. (a) Compare and contrast pure line and mass selections.
Or
(b) What is pedigree method and how it differs from bulk method?

Duraimani

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