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[QUOTE=hemalathaijt;195499][B]UNIVERSITY OF KERALA
SEMESTER-III CORE COURSE –I
Methodology of Plant Science
(Model question paper)
[B]Course Code [/B]: BO 1341
[B]Time [/B]: 3 hrs Total Weightage : 30[/B]

[B]Model Question List  [/B]: [URL]http://www.keralauniversity.ac.in/index.php/component/content/article/29-the-cms/210-model-question-papers-of-degree-courses-under-choice-based-credit-a-semester-.html[/URL]
[B]Model Question Paper  [/B]: [URL]http://www.keralauniversity.ac.in/images/Downloads/botanyqp.pdf[/URL]

SECTION – A
Answer the following
Draw diagrams wherever necessary
(Questions in bunches of four; Each bunch carries a weightage of 1)
I. Choose the correct answer
1. The amount of light absorbed by a material is proportional to the concentration of the absorbing solution is referred as
a) Beer's law
b) Boger-lambert law
c) Poiseuille's law
d) all of the above

2. The first patented life form belongs to the kingdom
a) Plantae
b) Monera
c) Protista
d) Animalia

3. The ratio of diameter of lenses to its focal length is referred as
a) Magnification
b) Resolution
c) Numerical aperture
d) none of the above

4. pH of pure water is
a) 7.8
b) 6.5
c) 7.0
d) none of the above

II. Answer in one word or in a sentence
5. Expand PAGE
6. Mention the function of Iris Diaphragm in a light microscope
7. Which acts as a stationery phase in paper chromatography?
8. The finding that there was little or no water within the DNA molecule led Watson to build the correct structure of DNA. Who correctly spotted the mistake concerned with water content?

III. State true or false
9. An observational investigation does not generally start out with a hypothesis
10. The concept of partition coefficient is the basic principle of all chromatographic methods.
11. DPX is a killing and fixing fluid.
12. PAGE stands for Polyadenylamide gel electrophoresis

IV. Fill in the blanks
13. The technique of isoelectric focussing was discovered by……………..
14. The most widely used apparatus for the determination of radioactive isotopes is…….
15. The unit of sedimentation coefficient is known as ………….
16. For studying the external morphology of pollen grains, ………..technique is commonly used.

SECTION-B
Answer any Eight
(Short answer questions; each question carries a weightage of 1)
17. What is double staining?
18. Stage micrometer and ocular micrometer.
19. Explain Carnoy’s formula
20. Describe magnification and resolution of a light microscope.[/QUOTE]

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