Advances in Cell Biology — DU B. Sc. (Hons) Microbiology Previous Year Question Papers

(iii) Briefly describe types of cell-cell signaling with the help of example. (6) (iv) De.fine autophagy and mitophagy. (2) (i) Define the following (any three) : (2x3=6) (a) Proto-oncogenes (d) Growth factors (ii) Name 2 drugs used in cancer treatment and explain their mode of action. (iii) What is the role of ubiquitin ligase in the regulation of cell cycle progression? Instruct.ions for Candidates 1. (i) Expand the following any six: ` (1x6=6) (ii) Discuss the properties of cancer cells. (6) (iii) Briefly explain the production of induced pleuripotent stem cells. (6) (i) Define the following (any three):, (2x3=6) (b) Hematopoietic STEM cell (it) Discuss the spindle assembly and DNA damage check points during eukaryotic cell cycle. (6) (i) Mitosis and Meiosis (i) Cyclic AMP and MAP Kinase Pathway (iii) Somatic STEM cell and Embryonic STEM Cell (iv) Viral and somatic oncogenes (i) Differentiate between the immune cell and on colytic viral therapies. (4) (iv) Define the signaling molecules. (2) 5. (i) Discuss the therapeutic applications of stem cells with suitable examples. (6) (ii) Explain the different mechanisms of CDK regulation. (4)