<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/98244a08-a975-4702-aeb8-3121363366f1/C4050FBF-B685-4AC4-A9C0-A0C01381E949/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://masterofscience.wordpress.com/2007/06/27/double-helix-discovery-creates-foundation-for-personal-genome-sequencing/" href="http://masterofscience.wordpress.com/2007/06/27/double-helix-discovery-creates-foundation-for-personal-genome-sequencing/" style="font-size: 11px;">masterofscience.wordpress.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://masterofscience.wordpress.com/2007/06/27/double-helix-discovery-creates-foundation-for-personal-genome-sequencing/"> How is it possible for 50 years to span theorizing proteins as the keeper of hereditary information to personal genome sequencing? The comparison is not unlike that of the technological advancement from the first brief flight taken by the Wright brothers to the moon landing over 60 years later.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://masterofscience.wordpress.com/2007/06/27/double-helix-discovery-creates-foundation-for-personal-genome-sequencing/"> Proteins were composed of up to 20 different amino acids while DNA was composed of only 4 nucleic acids. Proteins could be a variety of sizes, shapes and compositions while DNA seemed to be too simple. The structure of DNA was not known, although several top scientists, including Linus Pauling, inventor of the polio vaccine, were competing for that discovery. Nor was it known how proteins could retain hereditary information and transfer that information during cell division. Watson and Crick had combined their knowledge of genetics, chemistry, X-ray crystallography and biochemistry and set out to solve the structure of DNA without manipulating any actual DNA.</blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/C4050FBF-B685-4AC4-A9C0-A0C01381E949/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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