What happens when DNA cant be rapaired

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VincentX
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What happens when DNA cant be rapaired

Post by VincentX » Sun Dec 09, 2007 8:06 am

Normally damage on DNA can be repaired by enzymes. But some times when the damage is occurred by high exposure by etc UV-light or chemical substances the reparation processes cant be done which results in cancer tumors.

What makes it unable to start the reparation?

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MrMistery
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Post by MrMistery » Sun Dec 09, 2007 9:13 am

Well, like any biological process, DNA reparation is not 100% percent efficient. therefore, if there are too many errors enough will sometimes remain to produce a cancerous tumor. But remember, the cell can still commit apoptosis.
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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Post by VincentX » Sun Dec 09, 2007 9:31 am

Ok so there isn't any specific protein, enzyme or environment change occurred by the cancer elicitation factors that make the reparation unavailable. It is just the matter of a non 100% perfect system combined with to many errors that failure the process?

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MrMistery
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Post by MrMistery » Sun Dec 09, 2007 4:19 pm

basically yes.
Cancer elicitation factor is a general term, for anything that creates errors that cannot be repaired, leading to cancer.
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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mith
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Post by mith » Sun Dec 09, 2007 4:50 pm

Also if your mechanic is damaged you can't repair.
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Enjoying one moment at a time;
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