Regarding biotechnological applications in agriculture, which of the following options are true?
a. The Green Revolution succeeded in tripling the food supply but was insufficient to feed the growing human population.
b. Increased crop yields are mainly due to improved crop varieties and better management practices, but not agrochemicals.
c. Micro-propagation is the method of producing thousands of genetically identical plants (somaclones) through tissue culture.
d. The meristem (apical and axillary) of a virus-infected plant is often virus-free and can be used to recover healthy plants.
e. The nutrient medium for tissue culture must provide a carbon source, inorganic salts, vitamins, amino acids, and growth regulators.
