Researchers dispute widely held ideas about stem cells

How do adult stem cells protect themselves from accumulating genetic mutations that can lead to cancer? For more than three decades, many scientists have argued that the "immortal strand hypothesis" - which states that adult stem cells segregate their DNA in a non-random manner during cell division -- explains it. And several recent reports have presented evidence backing the idea.

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<p><a href="http://www.physorg.com/news107612326.html">Researchers dispute widely held ideas about stem cells</a></p> <p>How do adult stem cells protect themselves from accumulating genetic mutations that can lead to cancer? For more than three decades, many scientists have argued that the "immortal strand hypothesis" - which states that adult stem cells segregate their DNA in a non-random manner during cell division -- explains it. And several recent reports have presented evidence backing the idea.</p>