Aseptic culture means

Can obligate parasites be cultured on synthetic culture medium ?

Piece of sterile plant tissue to be used for tissue culture under aseptic condition is

Axcenic culture is, culture of genes.

Axenic culture is (a) pure culture without any contamination (b) pure culture without any nutrient (c) Culture of tissue (d) Culture of gene

Light condition best for culture maintenance in culture chambers:

Distinguish between: Batch culture and suspension culture

Extensive fish culture and Intensive fish culture. {: ( "Extensive fish culture", "Intensive fish culture"),( " Culture of fishes in large areas with low stocking density and natural feeding.", "Culture of fishes in small areas with high stocking density and providing artificial feed to increase production."):}

What do you mean by ''Hardening'' in plant tissue culture technique?