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{{traducción}}
{{em tradução}}
'''Homochirality''' refers to the property of a group of molecules having the same [[chirality]]. A substance is said to be homochiral if all the constituent units are molecules of the same chiral form ([[enantiomer]]). Life requires polymers with all building blocks having the same chiral form, such as DNA and RNA having only 'right-handed' sugars and proteins being formed only by 'left-handed' amino acids.<ref>{{cite book|author=Sarfati, Jonathan|authorlink=Jonathan Sarfati|title=[[By Design]]|publisher=Creation Book Publishers|year=2008|location=Australia|page=175|isbn=978-0-949906-72-4}}</ref> Homochirality is a unique property of living matter and gradually disappears after the death of living matter. Homochirality presents a challenge to materialists who need to explain the origin of life via purely natural mechanisms.
{{Chemistry portal}}
== See Also ==
* [[Cell Biology]]
* [[Genetics]]
* [[Gene Expression]]
* [[Amino Acids]]
==References==
{{reflist}}
==Related references==
* [http://www.creationontheweb.com/content/view/1719/ Origin of life: the chirality problem by] [[Jonathan Sarfati]]. TJ 12(3):263–266. December 1998
* [http://www.icr.org/article/evolution-hopes-you-dont-know-chemistry-problem-wi/ Evolution Hopes You Don't Know Chemistry: The Problem with Chirality] by [[Charles McCombs]], Ph.D.
* [http://www.evolutionnews.org/2012/05/homochirality_i059531.html Homochirality, a Puzzle in Biology that Remains Unsolved] by Evolution News & Views May 12, 2012
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[[Category:Cell biology]]
[[Category:Genetics]]
[[Category:organic chemistry]]
[[Category:organic compound]]
[[Category:Biochemistry]]
[[en:Homochirality]]
[[pt:Homoquiralidade]]
{{em tradução}}
'''Homochirality''' refers to the property of a group of molecules having the same [[chirality]]. A substance is said to be homochiral if all the constituent units are molecules of the same chiral form ([[enantiomer]]). Life requires polymers with all building blocks having the same chiral form, such as DNA and RNA having only 'right-handed' sugars and proteins being formed only by 'left-handed' amino acids.<ref>{{cite book|author=Sarfati, Jonathan|authorlink=Jonathan Sarfati|title=[[By Design]]|publisher=Creation Book Publishers|year=2008|location=Australia|page=175|isbn=978-0-949906-72-4}}</ref> Homochirality is a unique property of living matter and gradually disappears after the death of living matter. Homochirality presents a challenge to materialists who need to explain the origin of life via purely natural mechanisms.
{{Chemistry portal}}
== See Also ==
* [[Cell Biology]]
* [[Genetics]]
* [[Gene Expression]]
* [[Amino Acids]]
==References==
{{reflist}}
==Related references==
* [http://www.creationontheweb.com/content/view/1719/ Origin of life: the chirality problem by] [[Jonathan Sarfati]]. TJ 12(3):263–266. December 1998
* [http://www.icr.org/article/evolution-hopes-you-dont-know-chemistry-problem-wi/ Evolution Hopes You Don't Know Chemistry: The Problem with Chirality] by [[Charles McCombs]], Ph.D.
* [http://www.evolutionnews.org/2012/05/homochirality_i059531.html Homochirality, a Puzzle in Biology that Remains Unsolved] by Evolution News & Views May 12, 2012
{{Biology navbox}}
[[Category:Cell biology]]
[[Category:Genetics]]
[[Category:organic chemistry]]
[[Category:organic compound]]
[[Category:Biochemistry]]
[[en:Homochirality]]
[[pt:Homoquiralidade]]
