Genetics Question. HELP ASAP!!!
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Genetics Question. HELP ASAP!!!

[From: ] [author: ] [Date: 12-04-04] [Hit: ]
wikipedia.It lists the reasons the chromosomes cant reproduce more than once per cycle. There is a protein called Geminin, DNA replication inhibitor that builds in concentration eventually binding to Cdt1 (used in a chromosome replication phase) and sequesters it. Additionally, a phosphate compound gets added to Cdc6/18 (used in another chromosome replication phase) thus preventing it from binding to the ORC and is a second reason the further copying of chromosomes is not possible.......
What mechanism do eukaryotic cells employ to keep their chromosomes from replicating more than once per cell cycle?

And could you put the answer in simple terms so I can really understand it
I have no idea what the answer could be. Any help would be greatly appreciated
Please and Thank You :)

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http://en.wikipedia.org/wiki/Eukaryotic_…
It lists the reasons the chromosomes can't reproduce more than once per cycle. There is a protein called Geminin, DNA replication inhibitor that builds in concentration eventually binding to Cdt1 (used in a chromosome replication phase) and sequesters it. Additionally, a phosphate compound gets added to Cdc6/18 (used in another chromosome replication phase) thus preventing it from binding to the ORC and is a second reason the further copying of chromosomes is not possible.
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