How many centromeres are there in a chromosome

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adamrose

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Cliffs AP bio says there is 1 centromere per chromosome.. but after a duplicated chromosome splits, the chromatids are considered chromosomes because each chromatid has 1 centromere.

1 chromosome (w/ 1 centromere) --> 1 chromatid (w 1 centromere) + 1 chromatid (w/ 1 centromere)??

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Remember, during interphase there is S phase. This is when the DNA will be duplicated again and regenerate the other half of the centromere. Thus allowing the cycle to repeat.
 
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Remember, during interphase there is S phase. This is when the DNA will be duplicated again and regenerate the other half of the centromere. Thus allowing the cycle to repeat.
Couldn't have gotten a more clear answer. 10/10 thanks a lot
 
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