The sifo wareegga mitotic geedi socodka joogo

Division - hanti muhiim u ah unugyada. Aan habkan, ma suurtowdo in la qiyaaso in la kordhiyo tirada kala duwan micro-organisms ama dadkuba unicellular. Intaa waxaa dheer, waxaa ay hubisaa in soo kabashada ee unugyo iyo xitaa xubnaha oo dhan ee noolaha multicellular.

Waa in la ogaadaa in la ballamay ee geedi socodka in ay qaataan meel in muddo ah ka dhexeeya labada kala qaybsanaanta, loo yaqaan wareeg gacanta. Waxay qaadataa meel-yada. Sayidka, sifo habboon ee interphase iyo wareegga mitotic kaas oo unugyada kala qaybinaya.

Si ay u ilaaliyaan xaddiga ku habboon ee wax hidde baas laban laabmay taagoo DNA. Intaa waxaa dheer, ee interface waa soo gudubtaa biosynthesis ee borotiinada iyo formation of dhismeedka gacanta muhiim ah.

Waa inaan sheegaa in interphase muddo ka badan horyaalka laftiisa. Waxay ka kooban oo ka mid ah tallaabooyinka soo socda:

• muddo presynthetic - waxa lagu gartaa geeddi socodka koritaanka firfircoon, ereygu wuxuu ahaa ee borotiinada iyo acids nucleic, iyo sidoo kale dhismaha activators gaar ah muddo dardaro. cell gaaro ay size caadi ah oo dib u soo celineysa lagama maarmaanka u ah hawlaha ay organelle ah. Muddada muddo this - dhowr saacadood ama maalmood.

• sindeetig muddo - gartaa taranka DNA iyo Avv histones, kaas oo masuul ka ah Baakadaha nucleosome ee acids nucleic cusub ku dhexsameeysmo jirka, iyo sidoo kale labanlaabmay oo ka mid ah koromosoomyada iyo centrioles yihiin. Muddada muddo this - ilaa 12 saacadood.

• muddo postsynthetic - socdaa ilaa maytosis, lagu gartaa raasamaal ee tamarta iyo Avv borotiinka ee tubulin, taas oo lagama maarmaan u tahay qeybinta unug. Waxaa buuxiya muddada 2-4 saacadood.

Ka dib markii maraa maytosis tallaabo interphase, kaas oo sidoo kale lagu gartaa geedi socodka isku xigta gaar ah kaas oo unugyada gabadhii loo sameeyay iyadoo si fiican loo qeexay ee koromosoomyada.

Waxaa xusid mudan in ilaa maantadan la joogo sii sabab aan la garaneyn joojinta habka fission ah. Waa la garanayn iyo farsamo in dood ay dib, inkastoo hormoonnada Jaha oo ay talaabo ka mid ah wareegga mitotic waxaa firfircoonaan. Sababaha xakameeyo tirada dadka ka mid ah unugyada, sidoo kale ma si buuxda u fahamsan yahay.

On wareegga cell mitotic waxaa saameeya glucocorticoids. Prolactin, thyrotropin, estrogens iyo androgens ayaa sidoo kale awood u si gaar ah saamayn ugu qeybinta unugyada in unugyada bartilmaameedka.

Waxaa xusid mudan soo socda feature burooyin aan halis ahayn - ay wareegga sifo cell mitotic kirkeydiyanka (maalin kasta). Waxaa la rumeysan yahay in marka horumarka buro dhacdaa hoos u dhac in dareenka ee u shaqeeyo in r. N. chalones - unugyada inhibitors.

On heerka iyo baaxadda dadka gacanta ayaa sidoo kale saamayn ku waxqabadka nidaamka lysosomal ah, maxaa yeelay, falgalka ay noqon kartaa saamayn burbur.

Waa in la sheegay in formation of unugyo cusub ku xidhan tahay nooca unugyada, ay saameyn ku leeyihiin arrimaha dibadda iyo gobolka nafsaaniga ah ee jirka, sidaa daraadeed xaaladaha qaarkood waxaa laga yaabaa in ay leeyihiin sifooyinka shaqsi qaar ka mid ah, lagu gartaa koritaanka dheeraad ah ee dadka cell ama la joojiyo oo geeddi-socodka.