Question

Insect pest resistant Bt Cotton was developed by

Answer 1

Somaclonal variation refers to the genetic variations arising in the somatic cells of the clones developed by plant tissue culture technique, compared to donor plant.

Micropropagation is the production of new plants from plant tissues supplied with growth-promoting agents maintained under aseptic conditions. This is a method to conduct clonal propagation of plants.

Transgenic technology is the method to produce transgenic plants and animals by incorporating foreign genes in their genome. Bt cotton is developed by incorporating cry genes from the bacterium, Bacillus thuringiensis in cotton plants. This cry gene codes for insecticidal protoxin which when ingested by an insect gets activated and eventually kills the insect.

Somatic hybridisation is the process of fusion of the protoplasm of two somatic cells to form a hybrid cell.

Hence the correct option is
c. Transgenic technology