Special Proteins and Crop Improvement MCQs

Question 1

Protoplast fusion technique generally involves

Accepted Answer

isolation, fusion and culturing

Answer

isolation only

Answer

isolation and fusion

Answer

hybridization between two species

Question 2

Cytoplast (somatic cell hybridization) is the process in which

Accepted Answer

both (a) and (b)

Answer

two protoplast along with their nuclei fuse

Answer

a normal protoplast along with an enucleated protoplast fuse

Answer

two enucleated protoplasts fuse

Question 3

Somaclonal variation method refers to

Accepted Answer

heritable changes

Answer

genetic isolation

Answer

small number of species having limited commercial potential

Answer

large number of plant cells

Question 4

α and β cyclo dextrins are produced by

Accepted Answer

transgenic potato

Answer

transgenic tomato

Answer

transgenic maize

Answer

transgenic wheat

Question 5

α and β cyclo dextrins are used for

Accepted Answer

all of the above

Answer

pharmaceutical delivery system

Answer

flavour and odour enhancement in foods

Answer

removal of undesired compounds like caffeine from foods

Question 6

Microinjection technique of introducing NA is a

Accepted Answer

physical method

Answer

biological method

Answer

combination of physical and biological method

Answer

chemical method

Question 7

MS medium, is found essential for initial morphogenesis of the immature embryos and to enhance callus development, when supplemented with

Accepted Answer

GA3 and coconut milk

Answer

GA3

Answer

adenine

Answer

adenine and kinetin

Question 8

Plant tissue culture technique is used to select somaclones that are

Accepted Answer

resistant to herbicide

Answer

not resistant to herbicide

Answer

resistant to insecticides

Answer

not resistant to insecticides

Question 9

Which of the following mutant/(s) has/have increased amount of lysine and/or methionine in corn seeds?

Accepted Answer

All of these

Answer

Opaque-2

Answer

Sugary-1

Answer

Flory-2