Wednesday, February 3, 2016

Acharya N.G. Ranga Agricultural University M.Sc Botany 2010 Question Paper

Acharya N.G. Ranga Agricultural University
Question Paper Code: DBOT 01
M.Sc. (Previous) DEGREE EXAMINATION, JUNE 2010.
First Year
Botany
Paper I — BIOLOGY AND DIVERSITY OF ALGAE, BRYOPHYTES, PTERIDOPHYTES AND
GYMNOSPERMS
Time : Three hours Maximum : 100 marks
SECTION A — (5 x 8 = 40 marks)
Answer any FIVE questions.
Each question carries 8 marks.
1. Spirulina.
2. Reproduction in Vaucheria.
3. Sporophyte of Funoria.
4. Spagnum.
5. Siphonostele.
6. Sporocarp of Azolla.
7. Endosperm in gymnosperms.
8. Classification of gymnosperms.
2 (DBOT 01)
SECTION B — (4 ´ 15 = 60 marks)
Answer ALL questions.
Each question carries 15 marks.
9. (a) Give an account on types of life cycles in Algae.
Or
(b) Write an essay on reproduction in chlorophyceae.
10. (a) Describe the development of antheridium and archegonium in Marchantia.
Or
(b) Give an account on classification and general characters of bryophytes.
11. (a) Discuss the stelar evolution in pteridophytes.
Or
(b) Write an account on fossil pteridophytes.
12. (a) Describe the structure and development of male and female strobili of Genetales.
Or
(b) Give an account on Medullosaceae and state their affinities with other groups.
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