Agar,isolated from marine algae,is used in:

What are the advantages of tissue culture methods over conventional methods of plant breeding in crop improvement programmes?

The technique of producing a large number of genetically similar plants within a short time by tissue culture is called:

$S$ - Statement: An undifferentiated mass of cells in a culture is called callus.
$R$ - Reason: Auxin and cytokinin are added as growth regulators in the culture medium for callus induction.

The ability of any cell to generate the entire organism is known as:

Carrot is micropropagated through: