LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.Sc. DEGREE EXAMINATION – MEDICAL LAB. TECHNOLOGY
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SECOND SEMESTER – April 2009
ML 2954 / 2952 – ADVANCED LAB.TECHNIQUES
Date & Time: 24/04/2009 / 1:00 – 4:00 Dept. No. Max. : 100 Marks
SECTION A
Answer ALL the questions in one or two sentences: (10 X 2 = 20 marks)
- What is CODIS?
- How can DNA be used to identify an individual?
- List the factors affecting southern blotting.
- What are the three steps in AmFLP?
- Define allele.
- What is a primer?
- Draw the structure of a chromosome.
- What abnormalities can be detected by cytogenetics?
- Give examples of how DNA can be used in forensic identification.
- What is STR analysis?
SECTION B
Answer any FOUR of the following: (4 X 10 = 40 marks)
- What is Y chromosome analysis? How is it useful in genealogy?
- Write short notes on RFLP.
- Explain the methods of isolation and purification of nucleic acids.
- Explain structural abnormalities of chromosomes with diagram.
- Discuss briefly quality control and quality assurance in a molecular diagnostic laboratory.
- Elaborate northern, southern and western blotting.
SECTION C
Answer any TWO of the following: (2 X 20 = 40 marks)
- Discuss in detail chromosomes preparations for diagnosis.
- How is DNA fingerprinting done? Explain.
- Explain in detail the PCR technique. Add a note on its applications.
- Write an essay on in situ