M.Sc. (Semester IV) (CBCS) Examination Nov/Dec-2018
Genetics
AGRICULTURE SCIENCE AND SEED TECHNOLOGY
Time: 2½ Hours Max. Marks: 70
Instructions: Section-I, question 1 is compulsory.
Attempt any four questions from Section II.
All questions carry equal marks.
Draw neat and labeled diagrams wherever necessary.
Section I
Q.1 Rewrite the sentence after choosing correct answer from the given
alternatives:
07
Credit for discovery of cell goes to
Robert brown Robert Hook
Von Mohl Robertion
Fluid mosaic Model of cell membrane was proposed by
Danielli-Devson Singer and Nicolson
Robertson None of these
Ribosomes associated with
Photosynthesis Respiration
Photo respiration Protein synthesis
Rate of diffusion increases if
The temperature is increased
Density of diffusing particles is lesser
The medium through which diffusion occur is less concentrated
All of these
The diffusion of solvent molecule in to the solution through a
semipermeable membrane is called as
Imbibitions Diffusion
Osmosis All of these
Turger pressure of plant cell increases due to
End osmosis Ex osmosis
Wall pressure All of the above
Which of the following is not a physiological effect of Auxin in higher
plants?
Apical dominance Cell elongation
Root initiation None of these
Q.1 Define the following terms. 07
Osmosis
Guttation
Non-essential Nutrients (Example)
Photo oxidative stress
Types of soil
Define soil
Salinity stress
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SLR-VK-322
Section II
Answer any four of the following:
Q.2 Which are essential plant nutrients? And explain its function. 14
Q.3 What is mixed farming? 14
Q.4 Explain soil horizon. 14
Q.5 Answer any Two of the following:
Seed technology and its importance
Mineral deficiency (any four)
Brief account on absorption of water.
14
Q.6 Write short notes on any two 14
Type of soil in India.
Breeds of indigenous and exotic buffalos
Biosynthesis of Auxin IAN pathway.