Q.Match the following :

Matching the tissue-culture terms: Totipotency-(iii), Dedifferentiation-(i), Explant-(iv), Differentiation-(ii), giving option (b).

Working

Each term is walked through in turn: (1) Totipotency is the inherent capacity of a living plant cell to give rise to a whole new plant when placed under suitable conditions -- this matches definition (iii), "properties of living cells that develops into entire plant." (2) Dedifferentiation is the process by which mature, differentiated cells (e.g. cortical or pith cells) revert back to a meristematic, actively dividing state to form callus -- this matches (i), "reversion of mature cells into meristem." (3) Explant is the piece of living plant tissue (e.g. a shoot tip, leaf disc, or nodal segment) that is excised and transferred onto the culture medium to initiate tissue culture -- this matches (iv), "selected plant tissue transferred to culture medium." ** …