Question

How is callus culture different from suspension culture?

Answer 1

Basis of Difference	Callus culture	Suspension culture
Medium	Solid or gelled medium, usually agar	Liquid medium
Growth form	Callus grows as an unorganised mass	Single cells or small cell groups grow suspended in liquid
Mixing	Usually not constantly agitated	Constant agitation provides aeration and mixing
Growth and selection	Growth is generally slower; selection is less uniform	Usually faster; cells are in more uniform contact with medium