Talk:Introduction to evolution: Difference between revisions

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{{!}}[[ Image:Humpback stellwagen edit.jpg|143px]][[ Image:Square-townsend-fledermaus.jpg|143px]][[ Image:Arm flex supinate.jpg|115px]]
{{!}}}|caption=Homologous structures. Note how the same basic structure appears repeatedly in different types of forelimbs of different species.}}
 
== Watson Crick contributions ==
 
Three versions
 
* In 1953, [[James Watson]] and [[Francis Crick]] contributed to one of the most important breakthroughs in biological science when they described the '''double helix structure''' of DNA. This helped to demonstrate how DNA serves as the hereditary code a….. (The one that reflected yet another error)
 
* In 1953, [[James Watson]] and [[Francis Crick]] contributed to one of the most important breakthroughs in biological science when they described how the nucleotide "letters" in double helical DNA naturally form pairs. Nucleotide ''A'' always pairs with ''T'', and ''C'' always pairs with ''G''. (The current version)
 
* In 1953, [[James Watson]] and [[Francis Crick]] contributed to one of the most important breakthroughs in biological science when they described the '''structure''' of DNA. This helped to demonstrate how DNA serves as the hereditary code a….. (The modified version I was attempting to inquire about)
 
:I was thinking that perhaps by removing the term "double helix" structure we could satisfy your concern with out the need to expand to a thesis on DNA. A mini-lesson on DNA base pairing seems a bit of overkill here. --[[User:Random Replicator|Random Replicator]] ([[User talk:Random Replicator|talk]]) 22:26, 27 January 2008 (UTC)