Nalanda Open University 2010 M.Sc Botany {} Part–II, –XI (Molecular Biology) Annual , - Question Paper
M.Sc. {Botany} Part–II, Paper–XI (Molecular Biology) Annual Examination, 2010
Part-II, Paper-XI (Molecular Biology)
Annual Examination, 2010 Full Marks : 80 Time : 3 Hours.
Answer ani/ live Questions. Alt questions curry equal marks.
1. I low could DNA molecule account for the genetic complexity of life ?
2. IIow did Ilershev and chase differentiate between DNA and Protein in their experiment while prov ing that DNA is the genetic materials ?
3. Desc ribe the double helix model of DNA.
4. Write short notes on anv Tu>o of the following
(a) m-RNA
(b) t-RNA
(c) r-RNA
5. What do you mean bv "Mismatch Repair" ? Explain the process as found in E. Coli
6. Explain in brief about any three enzvmes invoked in DNA repair.
7. What are the general properties of the genetic code ? Explain in detail.
8. Defme the following (a) Operon.
(I)) Induction.
(c) Positive Control.
(d) Depression.
9. Write an essav on the one gene-one enzyme hypothesis.
Write short notes on anv two of the following
(a) Okazakipragments.
(b) DNA Polymerases.
(c) Wobble hypothesis.
10. Write short notes on anv Tivo of the following
(a) Selfish gene.
(I)) Overlapping gene.
(c) Muton.
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