Compare and contrast the advantages and disadvantages of production of genetically modified crops.
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Advantage of GM Crops:
1. Genetic modification has made crops more tolerant to abiotic stresses (cold, drought, heat, salt)
2. Viral resistance can be introduced.
3. Over ripening losses can be reduced
eg: Flavr Savr tomato
4. Enhanced nutritional value of food
eg: Golden rice. Reduced reliance on chemical pesticides.
Disadvantages of GM Crops:
1. Transgenes in crop plants can endanger native species.
For example, the gene for Bt toxin expressed in pollen might end natural pollinators like honey bees.
2. Weeds also become resistant.
3. Products of transgene may be allergic or toxic.
4. They cause damage to the natural environment.