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Introduction

GM Crops GM (genetically modified) crops are plants that are altered on a molecular level in a laboratory. It has been shown that by modifying these plants that scientists have been able to change their natural nutritional, insecticide resistance and flavor properties to produce better crops. A study conducted in 1999 showed that pollen from GM crops had caused unusually high mortality rates in Monarch butterfly caterpillars that had consumed pollen which had landed on nearby plants from wind pollination. ...read more.

Middle

will only be effective for a certain amount of time, because pests will develop a resistance to the B.t; as mosquitos did to DDT. Another concern is that plants that are modified for herbicide resistance will crossbreed with weeds to product weed variations that are also tolerant to herbicides. Studies have shown that where GM crops are planted in close proximity to non-GM crops that gene transfer does occur over a prolonged period. ...read more.

Conclusion

Laboratories have been able to modify the structures of the rice plant to introduce beta-carotene (a source of vitamin A1), which promotes healthy cell function in the eyes. Beta-carotene has also been proven to inhibit the grown of DNA in cancerous cells. ?Golden Rice? has been under constant development since the late 1990?s, but studies into it?s effectiveness have been limited and there are hopes to provide the plant variation to developing countries over the coming years. ...read more.

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