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B
Making crops more tolerant to abiotic stresses
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C
Enhancing nutritional value of food
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D
Helping to reduce post-harvest losses
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Solution
The correct option is A All of the above GMO (genetically modified organisms) can be defined as the organisms which have their genetic material altered for the expression of a particular trait.
Genetically modified organisms are developed to achieve the following:
It enhances the yield of the crops which can meet the increasing demand of the population.
They are resistant to the abiotic stresses of the environment like extreme cold, drought, salinity, heat. This ensures proper growth and yield of the plants.
These crops are less dependent on pesticide and insecticides as they are genetically resistant to pests. Examples include Bt cotton, Bt corn etc.
They have enhanced nutritional content. For example, golden rice which has been engineered to contain the gene encoding precursor of vitamin A.
These crops have been engineered to have decreased post harvest losses.