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Roll No. Total No. of Pages : 02
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Total No. of Questions : 18B.Tech. (BT) (2018 Batch) (Sem.-4)
CELL & MOLECULAR BIOLOGY
Subject Code : BTBT-403-18
M.Code : 77588
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Time : 3 Hrs. Max. Marks : 60INSTRUCTIONS TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
- SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.
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SECTION-A
Answer briefly :
- Outline the major differences between animal and plant cells.
- What do you mean by growth, differentiation and development?
- Differentiate between A- and B-form of DNA.
- Illustrate the molecular aspects of nucleosome architecture.
- Comment on the proof-reading activity of DNA Polymerases.
- Elucidate the meaning of codon degeneracy with examples.
- Write a brief note on RNA editing.
- What are the major differences between replication and transcription?
- Write briefly on the major checkpoints of mammalian cell cycle.
- Explain why apoptosis is an important biological process.
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SECTION-B
Give brief accounts on the following :
- Lysosome and Extracellular matrix (ECM).
- Depict the mode of bacteriophage ? genome replication during lytic cycle.
- Write a comprehensive note on prokaryotic and eukaryotic gene promoters.
- Explain why the lac operon is subject to both positive and negative regulation.
- Write a comprehensive note on the phenomenon of RNA interference.
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SECTION-C
- Illustrate the structural attribute and biological role of the cytoskeletons.
- Depict the process of both prokaryotic and eukaryotic translation initiation.
- Write comprehensive notes on Tyrosine Kinases and Ion channels.
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NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.
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This download link is referred from the post: PTU B.Tech Question Papers 2020 December (All Branches)