Strategies For Enhancement In Food Production

Answer (b) Lactose

Colchicine is an alkaloid obtained from the plant Colchicum autusmnale and is found to prevent the formation and organization of spindle fibres. It induces polyploidy in many plant and animal cells.

Improved variety is superior to the other existing varieties of the same crop in respect of one or more characters. It can be formed by hybridization followed by selection.

Plymoth rock, Wyandotte, New Hampshire, Rhod Island Red are some of the American breeds of poultry, Aurtralop and Sussex are British breeds. White leghorn and Minorica are Mediterranean breeds and Assel is a desi or indigenous breed.

Concept of cellular totipotency was first given by Haberlandt (1902) but was proved by Steward (1965). Cellular totipotency is the ability of a somatic cell to produce the entire organism.

Anguilla sp. (Eel) is a catadromous fish that lives in freshwater and breeds in sea.

Raising of new plantlets through tissue culture technique producing similar plants (true type plants).

Answer (c) Cyprinus carpio

Minorca is a breed of chicken originating in Spain. They are classified in the Mediterranean class by the American Poultry Association.

Muga silkworm (Antheraea assamd) belongs to family Saturniidae and is native to Asom (India). Its caterpillars feed on Machilus, cinnamon plants. Silk produced by this moth is known as muga silk.