more than one nuclei in a single cell?

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more than one nuclei in a single cell?

Post by ryan41 » Wed Nov 09, 2005 6:19 pm

i understand that some cells such as your heart cells, there can be more than one nuclei. i was wondering how does this occur? is it something to do with the cells over replicating?

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Post by MrMistery » Wed Nov 09, 2005 6:57 pm

Heart cells is not a good example. They generally have only one nucleus, rarely 2. A better example would be hepatocytes(liver cells): they all have 2 nuclei. Another example is the skeletical muscle cell that can have up to hundreds of nuclei. Basically what happens is this:
As the need to synthesise more proteins grows, the nucleus grows(like in neuron, which has a very large nucleus). But since with growth size grows on a square scale and volume on a cubic scale, some cells that really need it develop more nuclei. Got it? :wink:
"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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