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Chromosome/Chromatid?

Discussion in 'General' started by liquid_gen, 19 Sep 2008.

  1. liquid_gen

    liquid_gen What's a Dremel?

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    Textbooks and wikipedia seem to disagree with my teacher but as they aren't 100% clear I'm not sure. So can someone confirm that my understanding is correct or correct it if I am wrong:
    the X shaped structure is called a chromosome
    the individual strands of the X structure are called chromatids
    and single strands (on their own) are also called chromosomes

    Thanks
     
  2. theevilelephant

    theevilelephant Minimodder

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    Chromatid: Each of the two strands of chromatin comprising a duplicated chromosome. The term is applied only while the two chromatids are joined at the centromere. As soon as the centromere divides, setting the two chromatids adrift , they are called chromosomes.
     
  3. specofdust

    specofdust Banned

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    You're basically correct, as t.e.e. says. That part of biology confused the hell out of me for a fair old bit. Remembering all the stages of meioisis is even worse!

    Just remember that they're only chromatids when they're part of a chromosome. Otherwise they're chromosomes :D
     

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