Bangalore University Biotechnology Model Question Paper Government Science College : www.gscblr.kar.nic.in

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Bangalore University
Government Science College
I Semester Department of Biotechnology Examination, Nov/Dec. 2007
(Semester Scheme)
BIOTECHNOLOGY (Paper – I)
Cell Biology and Genetics
Time: 3 Hours Max. Marks: 60

Instruction : Draw neat and labeled diagrams wherever necessary.

Model Question List : http://gscblr.kar.nic.in/Exam_Papers.html
Model Question Paper : http://gscblr.kar.nic.in/files/Biotechnology.doc

SECTION – A
I. Answer the following: (5X2=10)
1. What are microtubules?
2. What is heterochromatin?
3. Define cell cycle.
4. What is Chargaff’s equivalence rule?
5. Define point mutation.

SECTON – B
II. Answer any four of the following: (4X5=20)
6. Describe the structure of Lamp brush chromosome.
7. Turner’s syndrome.
8. Distinguish between spontaneous mutations and induced mutations. Give two examples.
9. Explain the Fluid Mosaic model of plasma membrane with labeled diagram.
10. Explain coupling and repulsion hypothesis.

SECTION – C
III. Answer any three of the following: (3X10=30)
11. Give an account of structure, chemical composition and functions of nucleus.
12. Explain Watson and Crick’s double helix model of DNA with the help of neat labeled diagram.
13. What is multiple allelism? Explain with reference to blood groups in human beings. A man with blood group ‘A’ maries a woman with blood group ‘B’. What will be the blood groups of their children if both the parents are heterozygous.
14. Give a detailed account of meiotic prophase.
15. What are chromosomal aberrations? Explain in detail about structural aberrations.