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Biology - science of the future

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Introduction

Biology - science of the future Biology has often been described by scientists as the science of the future. Ways have been found to cure diseases, catch criminals, feed poor countries, save lives and make life more comfortable for everyone. After many years of extensive research much of the above has been made possible. Biology is not only a subject to be discussed, it can actually be put into action and make a difference to millions of people across the world. Recent developments have flooded newspapers around the globe and given many people hope of a better future. However, there has been a lot of controversy along the way with ethics and morality being the main issue. People ask, is it right to take the life of one human being to save another? Is it morally right to clone animals, passing on all genetic defects? Human and animal rights' protestors have voiced their views either rightly or wrongly, but their views should be taken into consideration. Almost all biological findings and experiments have to be tested on animals first before they can be made available to the general public. ...read more.

Middle

A recent break though which hit the headlines was cloning Dolly the Sheep. This was done by a scientist removing the nucleus from one of Dolly's unfertilised eggs with a micropipette, and removing the nucleus from a donor cell from her liver. The nucleus from the donor cell would then be inserted into the target cell (her liver cell). The newly fertilised egg would then be placed in a surrogate sheep to grow, and a clone of Dolly would be produced. However, genetic engineering can also be performed in plants, so only those plants with the best features, such as higher yield and better taste, will be used. Desired genes can be placed into plants using Agrobacterium as a vector. The bacteria Agrobacterium is able to infect over 1000 species of broad-leaved plants, entering by wounds. The bacteria carry a Ti (tumour inducing) plasmid. The plasmid DNA enters the plant's chromosome and stimulates the production of substances which produce a disfiguring tumour on the plant known as a crown gall. ...read more.

Conclusion

Researchers have managed to modify tomato plants by inserting a gene, which stops the 'ripening' gene from working at the normal rate. This means the tomatoes can then be left for longer on the plant until they are ripe and ready to be picked. They soften more slowly, suffer less damage and have a longer shelf life, which avoids waste. Genetic engineering has also helped thousands of us who are diabetic and don't have any insulin to control the sugar level in the blood. Human insulin can be made using genetic engineering techniques, which can then be used by diabetics. This is done in a similar way to most of the techniques highlighted above. Biology has made a huge difference to many people's lives, especially recent break- throughs and advances. I've only covered a very small part of genetic engineering in this essay, as there is much more. If things continue to be discovered, the lives of the dying and starving could be saved, and more criminals could be caught with forensic techniques. Biology really is the science of the future, as there have been so many recent break-thoughs, with the strong hope of many more to come. ...read more.

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