Which of the following plant part is used as a explant to prepare virus free plant ?

Pollen grains of a plant, whose $2 n=28$, are cultured to get callus by tissue culture method. What would be the number of chromosomes in the cells of the callus?

By tissue culture, indefinite number of plants from a small amount of parental tissue can be obtained. This technique is of great economic importance as

Which of the following are fused in somatic hybridization involving two varieties of plants?

Somaclones are obtained by

Micropropagation is a technique for production of