(A) It is a source of micronutrients
(B) It is a source of macronutrients
(C) It is a source of growth regulators
(D) It helps in maintaining pH of the media
The name “Golden rice” is given to a rice variety because:
(A) It contains traces of gold
(B) It is obtained from areas where gold mining is done
(C) The seeds are golden yellow in color because of the presence of β–carotene
(D) It is made of gold
An amorphous mass of loosely arranged thin-walled parenchyma cells developing from explant is called:
(A) Thallus
(B) Callus
(C) Callose
(D) Embryoids
Somatic embryos are:
(A) Embryos developed from zygote after fertilization
(B) Embryos developed from egg without fertilization
(C) Embryo like structure settled from cells of callus
(D) Embryo developed by ovules
Bt cotton is a:
(A) A cotton variety obtained by crossing two different cotton plants
(B) A cotton variety brought from South America
(C) An insecticide sprayed on cotton plan
(D) A transgenic cotton variety
The main aim of human genome project is:
(A) To identify and sequence of all the genes present in the human body
(B) To introduce new genes to human beings
(C) To remove disease causing genes from humans
(D) To improve techniques of finger printing
Totipotency refers to:
(A) The ability of a plant cell to arrest growth of a plant
(B) The ability of a plant cell to develop disease
(C) The ability of a plant cell to develop into a complete plant
(D) The ability of a plant cell to develop into a callus
Agar, used in plant tissue culture is extracted from:
(A) A fungus
(B) A bacterium
(C) An alga
(D) A virus