What are hybridomas?

Monoclonal antibodies are produced from hybrid cells, called hybridomas. The cells employed to obtain these hybridoma cells are :

What are histones? What are their functions?

What are Enzymes ? What are their characteristics (properties)?

What are radio-isotopes? What are their applications?

What is a tissue? What are its kinds?

What are porins? What role do they play in diffusion?

What is hibernation? What is the significance?