Methods of producing fusion of cells are A/E: (A) Attaching inactive viral paicles on cell membrane, (B) Adding polyethylene glycol, (C) Applying a small electric current, (D) Reducing surface tension
Answer is D. D i.e. Reducing surface tension Cell fusion (eg. as used in hybridoma technique to produce monoclonal antibodies) can be brought about by - Exposure to polyethylene glycol gelQ - Electric field induced (i.e. applying small electric current) cell fusionQ - Laser induced cell fusion - Attaching inactive viral paiclesQ like inactivated rota virus and Sendai virus.