M.Sc-M.Sc Botany 1st Year Exercise Therapy – I(Acharya Nagarjuna University - Center for Distance Education, Guntur, Andhra Pradesh-2013)

                                          (DBOT 01) NR

           M.Sc. (Previous) DEGREE EXAMINATION, MAY - 2013
                                                     F irst Year
                                                   Botany
                Paper - I : BIOLOGY AND DIVERSITY OF ALGAE, BRYOPHYTES,
                                      PTERIDOPHYTES AND GYMNOSPERMS



Time : 03 Hours                                                         Maximum Marks : 80

Section - A (5 × 8 = 40)
Answer any Five of the following

1) Protista.
2) Cyanophyta.
3) Thallus range in Bryophytes.
4) Archegoniophore in Marchantia.
5) Conducting tissue in the sporophytes of Bryophytes.
6) Classification of Pteridophytes.
7) Bennettitales.
8) Cones of Coniferales.
Section - B (4 × 10 = 40)
Answer All of the following

9) a) Describe the thallus organisation in Algae.
OR
b) Describe reproduction and life cycles in Phaeophyta.

10) a) Describe the development of sex organs and evolution of reproduction in Bryopsida.
OR
b) Explain the sexual reproduction and life cycles in Anthoceros.

11) a) Give an account on the development of stele in Pteridophytes.
OR
b) Describe the development of sex organs and reproduction in Marselia.

12) a) Describe the development of male gametophytes in Gymnosperms.
OR
b) Describe the economic importance and classification of Gymnosperms.
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