21. Somaclonal variation method refers to

A. heritable changes
B. genetic isolation
C. small number of species having limited commercial potential
D. large number of plant cells

22. α and β cyclodextrins are produced by

A. transgenic tomato
B. transgenic maize
C. transgenic potato
D. transgenic wheat

23. α and β cyclodextrins are used for

A. pharmaceutical delivery system
B. flavor and odor enhancement in foods
C. removal of undesired compounds like caffeine from foods
D. all of the above

24. Microinjection technique of introducing NA is a

A. physical method
B. biological method
C. combination of physical and biological method
D. chemical method

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

A. GA₃
B. GA₃ and coconut milk
C. adenine
D. adenine and kinetin