Download PTU (I.K.Gujral Punjab Technical University (IKGPTU)) B-Tech (Bachelor of Technology) BT-Bio Technology 2020 December 4th Sem 77588 Cell And Molecular Biology Previous Question Paper
Roll No.
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech. (BT) (2018 Batch) (Sem.?4)
CELL & MOLECULAR BIOLOGY
Subject Code : BTBT-403-18
M.Code : 77588
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Answer briefly :
1.
Outline the major differences between animal and plant cells.
2.
What do you mean by growth, differentiation and development?
3.
Differentiate between A- and B-form of DNA.
4.
Illustrate the molecular aspects of nucleosome architecture.
5.
Comment on the proof-reading activity of DNA Polymerases.
6.
Elucidate the meaning of codon degeneracy with examples.
7.
Write a brief note on RNA editing.
8.
What are the major differences between replication and transcription?
9.
Write briefly on the major checkpoints of mammalian cell cycle.
10. Explain why apoptosis is an important biological process.
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SECTION-B
11. Give brief accounts on the following :
Lysosome and Extracellular matrix (ECM).
12. Depict the mode of bacteriophage genome replication during lytic cycle.
13. Write a comprehensive note on prokaryotic and eukaryotic gene promoters.
14. Explain why the lac operon is subject to both positive and negative regulation.
15. Write a comprehensive note on the phenomenon of RNA interference.
SECTION-C
16. Illustrate the structural attribute and biological role of the cytoskeletons.
17. Depict the process of both prokaryotic and eukaryotic translation initiation.
18. Write comprehensive notes on Tyrosine Kinases and Ion channels.
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 post was last modified on 13 February 2021