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Genetic Engineering -
Beginning of essay
Scientists are trying to figure out the entire three billion-letter human genome with high precision as a prelude to figuring out eventually what protein each gene produces and for what purpose. It all started in 1866 when Austrian botanist and monk Gregor Mendel proposed basic laws of heredity ba ....
Middle of essay
.... The genetic code can be read in the rungs of the ladder. The code is spelled out by four chemicals: adenine (A), thymine (T), guanine (G), and cytosine (C). A pairs with T, and G pairs with C to form the ladder (Lemonick 46-47).
How Scientists Break the Code of Life
First a small fragment of DNA is cut out of a chromosome. That fragment is cloned to create millions of copies. Following that the fragments are divided into four special solutions, in which they begin to replicate. Each solu.... |
| Number of words: 980 |
Approximate pages: 4 |
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