Thursday, September 17, 2015

Paper-VIII Genetics in B.Sc Botany for NOU Exams - 2015 Question Paper

Nalanda Open University
Annual Examination - 2015
B.Sc. Botany (Honours), Part-III
Paper-VIII (Genetics)
Time: 3.00 Hrs. Full Marks: 80
Answer any five questions. Questions No. 1 is compulsory. All questions carry equal marks.
1. Multiple choice questions :
 (i) A ratio of 9 : 3 ; 3 : 1 is modified in complimentary genes to :
 (a) 12 : 3 : 1 (b) 13 : 3 (c) 15 : 1 (d) 9 : 7
 (ii) Duplicate factors show the ratio :
 (a) 9 : 6 : 1 (b) 12 : 3 : 1 (c) 15 : 1 (d) 9 : 7
 (iii) Variation in individual chromosome number of an organism is :
 (a) Polyploidy (b) Euploidy (c) Aneuploidy (d) Aberration
 (iv) A trisomic individual has a chromosome number of :
 (a) 2n – 1 (b) 2n + 2 (c) 2n + 1 (d) 2n + 3
 (v) Turner's syndrome is due to :
 (a) Monosomy (b) Trisomy (c) Tetrasomy (d) Nullisomy
 (vi) The genetic information is coded in the form of :
 (a) Protein (b) Histone (c) DNA (d) ATP
 (vii) Which does defermine the sequence of amino acids in protein?
 (a) r RNA (b) t RNA (c) Genetic Code (d) Gene
 (viii) Which one of the following techniques is used by forensic laboratory
 in the detection of crime?
 (a) DNA finger printing (b) DNA nicking
 (c) DNA sequencing (d) Gene therapy
2. What is epistasis? Explain it with suitable example.
3. Define mutation and discuss point mutation.
4. Explain polyploidy and mention its role in evolution.
5. Describe the causes of different types of chromosomal diseases in man.
6. Give an account of meiosis and it significance.
7. Describe gene replacement therapy.
8. Give an account of germplasm conservation.
9. Write an essay on human genetics.
10. Write notes on any Two of the following :
 (a) Mutation breeding
 (b) DNA bank
 (c) Duplicate gene
 (d) Raphanopbrassica

You may also interested in downloading Paper-VII Cytogenic and Molecular Biology of B.Sc Botany in NOU - 2015 Question Paper

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