DISTANCE EDUCATION
M.Sc. (Zoology) DEGREE EXAMINATION, MAY 2018.
BIOPHYSICS AND BIOSTATISTICS
Time Three hours Maximum 100 marks
SECTION A — x 8 40 marks)
Answer any FIVE questions.
All questions carry equal marks.
1. Explain the Free energy concept.
2. Write an account of the effects of radiation on biological
molecules.
3. Describe the Southern blotting technique.
4. State and explain the Beer-Lambert's law.
5. Write a short note on the following
X-ray diffraction
Geiger Muller counter
Standard deviation
ANOVA.
6. Explain the Stratified random sampling method.
7. How will you collect the primary data? Explain.
8. Explain the importance of Chi-square test.
Sub. Code
15
DE-4169
2
wk12
SECTION B — x 15 60 marks)
Answer any FOUR of the following.
All questions carry equal marks.
9. Discuss the different types of chemical bonds.
10. State and explain the laws of thermodynamics.
11. Write an account of the applications of radioactive
tracers.
12. Describe the salient features of a laser system.
13. Explain the working principle and applications of Thin
Layer Chromatography.
14. Explain the methods of presentation of data by
Histogram, Frequency polygon and Pie diagram with
examples.
15. In an air pollution study a researcher obtained the
following results with regard to number of lichen species
and its respective distance from a chemical factory.
Calculate correlation coefficient and comment on the
results.
Distance away from
the factory (X)0.5 1 2 3 4 5 7 10

Number of lichen
species 1 2 5 8 11 16 19 28

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