Total No. of Questions 12] [Total No. of Pages 1
M.Sc. (Previous) DEGREE EXAMINATION, MAY 2017
(Examination at the end of First Year)
BOTANY
First Year
Bio. Div. of Algae, Bryophytes, Pteridophytes Gymnosperms
Time 3 Hours Maximum Marks 70

SECTION-A
Answer any Five questions from the following
Q1) Bacillariophyta
Q2) Fossil algae
Q3) Archegoniophore
Q4) Geamma cups
Q5) Siphonostele
Q6) Rhynia
Q7) Cycadeoidea
Q8) Pyconoxylic wood

SECTION-B (4×10=40)
Q9) Describe reproduction in algae. OR
Write an account on the economic importance of algae.
Q10) Describe the development of sporophyte in Bryophyta OR
Describe the structure and reproduction in Bryopsids
Q11) Describe the structure and reproduction in Psilotopsisda OR
Write an account on classification of Pteridophytes.
Q12) Describe the development of female gametophyte in Gymnosperms. OR
Write an account on Bennettitales.

(DBOT02)
Total No. of Questions 12] [Total No. of Pages 1
M.Sc. (Previous) DEGREE EXAMINATION, MAY 2017
BOTANY
First Year
Systematics of Angiosperms and Plant Ecology
Time 3 Hours Maximum Marks 70

SECTION-A (5×6=30)
Answer any Five questions from the following
Q1) Engler and Pranle classification
Q2) Merits and demerits of Bentham and Hooker classification.
Q3) Contribution of anotomy to taxonomy
Q4) Biological magnification
Q5) Hydrological cycle
Q6) Homeostasis
Q7) Floristic regions if India
Q8) Principles of plant geography
SECTION-B (4×10=40)

Answer all questions
Q9) Describe the plant distribution in the past and present.
OR Write an account on the types of vegetation.
Q10) Enumerate the evaluation of taxonomic categories.
OR Describe the criteria for the classification
Q11) Describe the biogeochemical cycles with reference to Carbon and Phosphorus.
OR Write an account on population interactions and natural regulation of populations.
Q12) Describe the water pollution, its causes, consequences and control.
OR Write an account on alternate and additional energy sources.


(DBOT03)
Total No. of Questions 12] [Total No. of Pages 1
M.Sc. (Previous) DEGREE EXAMINATION, MAY 2017
First Year
Botany
Cytology, Genetics and Plant Breeding
Time 3 Hours Maximum Marks 70

SECTION-A
Answer any Five questions from the following
Q1) Telomere
Q2) Karyotype analysis
Q3) Heterozygotes
Q4) Allopolyploids
Q5) Pseudoalleles
Q6) Sex limited inheritance
Q7) Probability laws
Q8) Back cross method
SECTION-B (4×10=40)
Q9) Describe the significance of mitosis and meiosis. OR Write an account on Euchromation and Heterochromatin.
Q10) Enumerate structural and numerical alterations of chromosomes. OR Describe the evolution of major crop plants.
Q11) Describe the principles of mendelian inheritance. OR Write an account on sex determination mechanisms in plants and man.
Q12) Describe the pure line selection and mass selection. OR Write an account on clonal selection and hybridization.


(DBOT04)
Total No. of Questions 12] [Total No. of Pages 1
M.Sc. (Previous) DEGREE EXAMINATION, MAY 2017
First Year
BOTANY
Plant Physiology and Metabolism
Time 3 Hours Maximum Marks 70

SECTION-A
Answer any Five questions from the following
Q1) Cohesion theory
Q2) Membrane transport of proteins
Q3) Mode and action of km value
Q4) CAM pathway
Q5) Transamination
Q6) TCA cycle
Q7) Phytochrome
Q8) Heat shock proteins
SECTION-B (4×10=40)
Q9) Describe the stomatal regulation of transpiration. OR Describe the role of micro and macro nutrients and their transport by diffusion.
Q10) Write an account on classification and nomenclature of enzymes. OR Describe the overview of respiration in plants.
Q11) Describe the mechanism of Nitrogen fixation. OR Write an account on structure and functions of phospholipids.
Q12) Describe the physiological effects and mechanism of action of Auxins OR Enumerate photoperiodism and vernalisation.