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| Wonders of Creation - DNA |
| Written by Richard Gunther |
| Wednesday, 21 September 2005 16:00 |
|
On April 14th, 2003 scientists announced to the world that they had finished sequencing the human genome. This meant they had managed to log the three billion pairs of DNA nucleotides (specially shaped molecules) that describe how to make a human being. One of the leaders of the Human Genome Project (Francis Collins) said this was just ?the end of the beginning?, because comparatively nothing was known about how those strings of molecules controlled the production of all the billions of different processes that make up a living human body. DNA?s alphabet was known to consist of only four types of nucleotide, so the information encoded in the double helix had to be DECODED according to some rules to tell cells which of the 20 amino acids to string together, to make the thousands of proteins that are needed to make a viable living organism. Since 2003 more discoveries have revealed how sophisticated the code built into DNA really is. It behaves like intelligent programming, and is quite literally a CODE. Genetic instructions are built into DNA and RNA as a sequence of nucleotides, but in order to produce a protein this code has to be altered into another system of symbols ? a bit like changing Morse code into English. One code is changed into another. This involves an enormous amount of decryption and encryption. On April 14th, 2003 scientists announced to the world that they had finished sequencing the human genome. This meant they had managed to log the three billion pairs of DNA nucleotides (specially shaped molecules) that describe how to make a human being. Richard Gunther, Copyright 2005 |



