Arsenic-based life form discovered on Earth

A NASA research team has found bacteria that uses arsenic as one of its nutrients. It has basically built up DNA with arsenic in place of that phosphorous that all other known lifeforms use. This greatly expands what we can define as life.
bcglorfsays...

Almost as big as discovering non-carbon based life forms. The sift should not be the first place I hear news this big. I prefer to think that is a comment on new media rather than myself... I hope

Ornthoronsays...

>> ^GeeSussFreeK:

We are so suck on DNA being the only way life can exist

DNA is still very much a part of these bacteria. The difference is that some of the phosphates in the DNA have been replaced by arsenates. See Gallowflak's link above for a more detailed explanation.

GeeSussFreeKsays...

Right, I understand that. What I am saying is DNA is just "A" condition of life, not necessarily "THE" condition of life. The sample size is small, only the planet earth, of which all life is supposedly related. Who says life has to exists as cells even, or matter? It is a huge universe, who knows what other possibilities are out there! Crystalline entity, I'm talking about you! *uhg, quote fail*

>> ^Ornthoron:

DNA is still very much a part of these bacteria. The difference is that some of the phosphates in the DNA have been replaced by arsenates. See Gallowflak's link above for a more detailed explanation.
<div><div style="margin: 10px; overflow: auto; width: 80%; float: left; position: relative;" class="convoPiece"> GeeSussFreeK said:<img style="margin: 4px 10px 10px; float: left; width: 40px;" src="http://static1.videosift.com/avatars/g/GeeSussFreeK-s.jpg" onerror="ph(this)"><div style="position: absolute; margin-left: 52px; padding-top: 1px; font-size: 10px;" class="commentarrow">◄</div><div style="padding: 8px; margin-left: 60px; margin-top: 2px; min-height: 30px;" class="nestedComment box">We are so suck on DNA being the only way life can exist
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