Term ‘hybridoma’ implies:
Gametic fusion
Hybrid vigour
Somatic fusion
DNA–RNA hybrid
Somatic fusion
Hybridomas are produced by injecting a specific antigen into a mouse, collecting an antibody-producing cell from the mouse's spleen, and fusing it with a tumour cell called a myeloma cell. Since the fusion of protoplasts takes place, it is a type of somatic fusion.