BSc Biotechnology Sem V 2019 2020 Oct 2020 BIOTECH CELL BIOLOGY Question Paper - Mumbai University | munotes

Questions asked in this paper

• 1. Attempt all questions

1. Q2 All questions carry equal marks
2. Q4 Use of log tables and non-programmable calculator is allowed
3. Q1 a. Doas directed: (Any Six) The time interval between the DNA replication and Mitosis is called phase of cell cycle. (G1,G2,S) pombe is also known as yeasts. (Fission, 6 marks
4. Q3 State true or false: Normal animal cells in culture need anchorage in order to pass start
5. Q4 What is size checkpoint?
6. Q5 State true or false: Serum Deprivation prevents passage through the cell
7. Q6 Complete the sentence: Xenopus eggs are chosen for experiments in cell
8. Q7 enzymes are cysteine proteases involved in apoptosis
9. Q8 State true or false: Neurons and skeletal muscle cells, divide once in year to replace old cells
10. Q9 Define Necrosis
11. Q1 b. the following: (Any Two) i= a. Differences between embryonic cell cycle and the standard cell 14 marks
    • b. Phases of eukaryotic cell cycle
12. Q2 Growth factors and their role in mammalian cell proliferation
13. Q3 The intrinsic pathway of apoptosis Doas instructed: (Any Six) 06 GPCRs are also known as (5-alpha receptors, 7-transmembrane State true or false: Synaptic signalling involves neurons Give an example of Ligand activating GPCR
14. Q5 Give an example of any one type of G protein
15. Q6 Give an example of Steroid hormones which can enter the cell for signal
16. Q7 true or false: Diacylglycerol is a secondary messenger
17. Q8 State true or false: Receptor Methylation is responsible for adaptation in bacterial chemotaxis
18. Q9 desensitization
19. Q2 b. Give an account of: (Any Two) 14 marks
20. Q1 RTK pathway of signal transduction
21. Q2 Any two mechanisms of target cell adaptation
22. Q3 Computer based neural networks to understand cell signalling
23. Q3 a. Answer the following objective questions as directed: (Any Six) 6 marks
24. Q1 State true or false: Cell theory changed the conception of studies in
25. Q2 true or false: The development of an embryo from the fertilized egg is known as embryogenesis
26. Q3 State true or false: Cell death phenomenon which describes the entire repertoire of cell types a particular cell can give rise in all possible
27. Q4 true or false: Homeotic genes give cells their positional identity
28. Q5 | Name any one method of construction of Fate Maps
29. Q6 is an early-stage embryo consisting of 16 cells (called blastomeres) in a solid ball contained within the zona pellucida
30. Q7 is the process by which cells become structurally and functionally specialized, allowing the formation of distinct cell types
31. Q8 Give any one derivative of ectoderm What is regulative development? Discuss the following: (Any Two) 14
32. Q1 With reference to developmental biology:
    • a. Zygote and Blastula With reference to developmental biology:
    • a. Pattern formation
33. Q3 With reference to developmental biology:
    • a. Concept of developmental biology
    • b. Emergence of developmental biology and multidisciplinary
34. Q4 a. Attempt the following objective questions as instructed: (Any Six) 6 marks
35. Q1 | Name any one tumour suppressor genes
36. Q2 the significance of Bcl2 protein
37. Q3 true or false: Oncogenes act ina dominant manner a: gain-of function mutation in a single copy of the cancer-critical gene can drive
38. Q4 Give the significance of Rb protein
39. Q5 the term metastasis
40. Q6 | What are proto-oncogenes?
41. Q7 What do you mean by replicative senescence?
42. Q8 the significance of the tumour marker PSA
43. Q9 Define sarcoma
44. Q4 b. Answer the following questions: (Any Two) 14 marks
45. Q1 Elaborate on the role of p53 in controlling cancer
46. Q2 Cancer cells are a clone descended from a single abnormal cell. Discuss
47. Q3 detailed account on chemotherapy of cancer Write Short notes on the following: (Any Four) 20
    • b. Apoptosis and its significance
    • d. Any one model organism in developmental biology
    • f. Role of viruses in cancer

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