Given below are a few statements regarding somatic hybridisation. Choose the correct statements.
I. Protoplasts of different cells of the same plant are fused .
II. Protoplasts from cells of different species can be fused.
III. Treatment of cells with cellulase and pectinase is mandatory.
IV. The hybrid protoplast contains characters of only one parental protoplast.
I and II
I and II
I and IV
IV and III
An explant is
dead plant
part of the plant
part of the plant used in tissue culture
part of the plant that expresses a specific gene
The biggest constraint of plant breeding is
availability of desirable gene in the crop and its wild relatives
infrastructure
trained manpower
transfer of genes from unrelated sources
Lysine and tryptophan are
proteins
non-essential amino acids
essential amino acids
aromatic amino acids
Micro-propagation is
propagation of microbes in vitro
propagation of plants in vitro
propagation of cells in vitro
growing plants on smaller scale