Molecular Biology III Past Paper PDF - S.Y. BT Sem-III 20XX
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This document is a past paper for a Molecular Biology course. It contains a variety of questions and short notes covering topics in molecular biology, ranging with increasing complexity of biological processes. The questions require a detailed explanation and potentially diagrams, possibly including different biological mechanisms and the regulatory systems they control.
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## S.Y. BT. Sem-III Paper-306 (Molecular Biology III) ### 7 or 8 marks questions: 1. Describe the process of transcription in prokaryotes. 2. Explain the initiation of transcription at promoters. 3. Give the diagrammatic representation of the action of *E. coli* RNA polymerase. 4. Explain the elon...
## S.Y. BT. Sem-III Paper-306 (Molecular Biology III) ### 7 or 8 marks questions: 1. Describe the process of transcription in prokaryotes. 2. Explain the initiation of transcription at promoters. 3. Give the diagrammatic representation of the action of *E. coli* RNA polymerase. 4. Explain the elongation and termination of RNA chain. 5. Elaborate the promoters and enhancers in prokaryotic transcription. 6. Explain the prokaryotic initiation of translation. 7. Discuss the nature of genetic codes. 8. Explain the arabinose operon model in *E. coli*. 9. Explain the lytic and lysogenic cycles for regulation of gene expression. 10. Explain the lac operon system of gene expression in bacteria. 11. Narrate the life cycle of temperate lambda phage. 12. Explain the trp operon system of gene expression in *E. coli*. 13. Explain the process of transcription of protein coding genes. 14. Describe the promoters and enhancers in eukaryotic transcription. 15. Describe the eukaryotic RNA polymerases along with their types. 16. Explain the assembly of the transcription initiation machinery with diagram. 17. Write a short note on eukaryotic mRNA. 18. Describe the process of synthesis of functional mRNA in prokaryotes and eukaryotes. 19. Describe the transcription of rRNA genes. 20. Explain the spliceosomes to process pre-mRNA to mature mRNA. 21. Explain the model of RNA splicing with steps and diagrammatic representation. 22. Narrate the elongation of polypeptide chain in prokaryotic translation. 23. Explain translocation and termination steps in translation. 24. Discuss the arabinose operon system of gene regulation in *E. coli*. 25. Narrate the life cycle of temperate lambda phage. 26. Compare the lytic and lysogenic cycles. 27. Explain the trp operon system of gene expression in bacteria. 28. Discuss the lytic cycle to regulate gene expression in viruses. 29. Explain the RNA editing process giving an example with diagram. 30. Explain the synthesis of RNA in bacterial transcription. 31. Describe the post transcriptional modification in detail. 32. Explain the process of termination in eukaryotic transcription. 33. Explain the initiation process of translation in bacteria. 34. Discuss the characteristics of genetic codes. 35. Prepare the table for coding and non coding codons. 36. Explain the wobble hypothesis with an example. 37. Explain the lac operon system of gene expression in *E. coli*. 38. Explain the trp operon system of gene expression in *E. coli*. 39. Discuss the lytic cycle to regulate gene expression in viruses. 40. Discuss the lysogenic cycle to regulate gene expression in viruses. ### 5 marks short notes 1. Elongation in translation 2. Translocation process 3. Gene regulation in prokaryotes 4. Post translational modification 5. Termination in translation 6. lac operon model in *E. coli*. 7. Termination in translation 8. Initiation of translation 9. Gene regulation in viruses 10. RNA polymerases 11. Types of eukaryotic RNA polymerases 12. Types of RNA and their functions 13. Processing of pre-mRNA 14. Protein sorting in cells 15. Arabinose operon model
