Centriole
Centriolerne er to cylindriske organeller, bestående af korte mikrotubuli, der befinder sig lige uden for kernemembranen indtil metafasen, den anden af Mitosens fire faser, hvor kernemembranen opløses.[1]
De har en vigtig funktion, når cellen deler sig.
Fine tråde, tentråde fra centriolerne trækker i hver sin del af de kopierede kromosomer, når cellen skal deles. Mikrotubuli er nukleerede og organiseret af det såkaldte mikrotubulusorganiserende center (MTOC) En væsentlig struktur, hvori mikrotubuli indgår, er tentrådsapparatet[2], der dannes i mitosen i eukaryote celler for at sikre en korrekt adskillelse af kromosomerne under celledelingen"
Referencer
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