UNIVERSITY OF AGRICULTURAL SCIENCES, BENGALURU
FINAL EXTERNAL EXAMINATION (II SEMESTER 2014-15)
GPB 101: Principles of Genetics (2+1)
Date: 22.06.2015 | Time: 45 Min. (10:45 to 11:30 AM) | Marks: 25
PART-B: DESCRIPTIVE TYPE QUESTIONS
Instructions:
Answers for Part-B (Descriptive type questions) shall be written in the answer booklet only.
Section II: Answer Any Five Questions (5 × 2 = 10 Marks)
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Explain dominance with examples.
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Differentiate between Transition and Transversion.
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Draw a neat labelled diagram of the structure of replication fork along with its components.
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What is linkage and recombination? Explain.
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Explain multiple factor hypothesis with a suitable example.
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Differentiate between Euchromatin and Heterochromatin based on their structure and function.
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What is stop codon? Discuss its function.
Section III: Answer Any Three Questions (3 × 5 = 15 Marks)
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Discuss the different steps involved in meiosis with neat labelled diagrams.
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Explain about the different types of polyploidy with appropriate examples.
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Discuss in detail the different steps in protein synthesis with a neat labelled diagram.
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Discuss in detail about the special types of chromosomes with neat labelled diagrams.
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What is the role of polyploidy in the evolution of crop plants? Discuss it with examples.

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