Cell division

[13andya at my-dejanews.com]

Hi Baron, I am student of cell biology too. I know that the mitochonadria
undergo a fission to give two new mitochondria, just like a bacteria would
divide. rather this is one of the evidence used by scientists to prove the
concept that the mitochondria evolved from bacteria. But about the other cell
organelles I am also unaware what exactly happens to them. Please let me know
if you learn anything about it, thanks, udayan


In article <19990404220104.06481.00002772 at ng152.aol.com>,
  baron0805 at aol.com (Baron0805) wrote:
> I am studying that right now in my Cell Biology class.  I haven't read too
much
> about it yet.  We are going to start it on Monday.  I have only read about the
> nuclear envelope.  It disappears and is reassembled after mitosis.  It happens
> in the following manner:
>       1.  proteins associated with the nuclear envelope are phosphorylated and
> dissociate.
>       2.  Then, those proteins associate themselves with the metaphase
> chromosomes.
>       3.  After that, the actual envelope associates with the envelope
> proteins.
>       4.  After mitosis, the vacuoles that are formed around the chromosomes
> bunch up together and form a new envelope.  This way it keeps all of the
> nuclear proteins together.
>
> Step 4 is like bubbles in a bowl of water joining together to form one big
> bubble (nuclear envelope).  I am not sure about other organelles, but I will
> learn here shortly.
>
> Baron
>
> Question everything!!!!
>

-----------== Posted via Deja News, The Discussion Network ==----------
http://www.dejanews.com/       Search, Read, Discuss, or Start Your Own