Osmania University (OU) 2007 M.Sc Information and Communication Technology CYTOLOGY, GENETICS AND PLANT BREEDING - Question Paper

(DBOT 03)
M.Sc. (Previous) DEGREE EXAMINATION, DECEMBER 2007.
First Year
Botany

Paper III -CYTOLOGY, GENETICS AND PLANT BREEDING

Time : 3 hours Maximum : 100 marks

ans any 5 ques. from part A.

every ques. carries eight marks.

ans ALL ques. from part B.

every ques. carries 15 marks.

part A - (5 *8 = 40 marks)

1. Synaptonemal complex.
2. Chromosome banding.
3. Translocation heterozygotes.
4. Meiosis in haploids.
5. Tetrad analysis.
6. Laws of probability.
7. Recurrent selection.
8. Germplasm collections.

part B - (4 × 15 = 60 marks)

9. (a) Bring out the differences ranging from prokaryotes and eukaryotes.
Or
(b) Write an essay on the organization of nucleolus.

10. (a) provide an account of the salient features of polyploids.
Or
(b) define the special kinds of chromosomes.

11. (a) define the role of mutations in plant breeding.
Or
(b) Enumerate the salient features of chromosome mapping in eukaryotes.


12. (a) define briefly the steps involved in pedigree method of breeding.
Or
(b) define the bulk method of breeding and its applications. What
are
its merits and demerits?

Earning:   Approval pending.