The eukaryotic nuclear membrane is something of a mysterious structure and its origins are the subject of much debate. It would be interesting to hear a microbiological view on the question: why is there a nuclear membrane?
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A global view might be that the nuclear membrane prevents mitochondria from invading the nucleus--it allows separation of different kinds of DNA, which there is some selection pressure to keep separated.
Posted by: Dorothy Lewis | September 22, 2008 at 10:41 AM