Roll No. Total No. of Pages : 02
Total No. of Questions : 09
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B.Tech.(BT) (2012 to 2017) (Sem.-4)
CELL & MOLECULAR BIOLOGY
Subject Code : BTBT-404
M.Code : 55087
Time : 3 Hrs. Max. Marks : 60
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INSTRUCTION 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.
SECTION-A
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Q1. Answer briefly :
- Explain the different functions performed by the smooth endoplasmic reticulum.
- How do CDKs and CDKIs play a role in cell cycle?
- What do you mean by ‘Semi conservative mode of replication’?
- Describe the structure of an Eukaryotic chromosome?
- What are the differences between RNA polymerases in prokaryotes and eukaryotes?
- Name any Inhibitor of translation and its mode of action.
- What is the function of a tumor suppressor gene?
- Write down the process of RNA capping.
- Explain the role of cis-regulatory sequences.
- What are the different types of components of the cytoskeleton?
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SECTION-B
Q2. Explain the structural organization of the mitochondria and also describe the process of oxidative phosphorylation.
Q3. Explain and list the different various steps taking place during mitosis of a cell. Also describe the significance of mitosis.
Q4. Explain the mechanism of Base Excision repair (BER) pathway taking place during DNA repair.
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Q5. Elucidate and explain the different Post transcriptional modifications.
Q6. Write about the epigenetic modifications taking place during regulation of gene.
SECTION-C
Q7. Briefly describe the process of DNA Replication in E.coli Also explain the different enzymes that are involved in the above process.
Q8. Write explanatory notes on :
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- Function of signal peptide and transport
- The components found in the extracellular matrix (ECM)
Q9. Briefly describe the process of regulation of gene expression in Lac Operon.
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 March (All Branches)
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