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University : Mohan Lal Sukhadia University
Degree : B.Sc
Department : Zoology
Subject : Heredity & Genetics
Year : II
Document Type : Question Paper
Website : mlsu.ac.in

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MLSU Heredity & Genetics Question Paper

Second Year Examination of the Three Year Degree Course, 2001
ZOOLOGY Third Paper (Heredity and Genetics)
Time : 3 Hours

Related : Mohan Lal Sukhadia University Cell & Molecular Biology B.Sc Question Paper : www.pdfquestion.in/5813.html

[ Maximum Marks :50]
Attempt any five questions,
selecting at least one question from each unit,
All questions carry equal marks.

UNIT – I

1. Describe structure of Chromosome :
(a) when observed under light microscope
(b) when observed under electron microscope.
OR
2. Describe these stages of cell cycle :
(a) Initial growth period
(b) Second growth period.

UNIT-II

3. Giving suitable example, describe sex-linked inheritance in drosophila.
4. Differentiate between :
(a) Sex limited gene and sex influenced gene.
(b) Complete sex linkage and incomplete sex linkage.

UNIT-III

5. Draw following diagram of various stages of meiosis showing situation of chromosomes :
(a) Pachytene(b) Diplotene(c) First metaphased) First anaphase
(e) Second metaphase (f) First telophase
6. Write notes on :
(a) Down syndrome(b) Klinfelter’s syndrome(c) Turner’s syndrome

UNIT-IV

7. What do you understand by gene mutation- Differentiate between somatic and germ mutations.
8. What do you understand by chromosomal mutation- Differentiate between chromosomal number and chromosomal aberrations.

UNIT-V

9. What do you understand by genetic engineering- Describe various steps of formation of recombinant DNA.
10. Explain :
(a) Triplet(b) Chain initiation codon(c) Chain termination codon