Qeybta hoose ka akhriso kadibna ka jawaab su'aasha afka ku qoran: Qeybta hoose: Dhamaadka linear chromosomes waxaa ku yaal qaybo gaar ah oo DNA ah oo loo yaqaan telomeres. Waxqabadka ugu weyn ee gobolladaas ayaa ah inay u oggolaadaan unugyada inay ku soo koobaan dhamaadka chromosome iyadoo la adeegsanayo enzyme telomerase, maadaama enzymes-yada sida caadiga ah u soo koobiya DNA-da aysan nuqul ka qaadan karin dhamaadka 3 'aad ee chromosomes. Koofiyadaha chromosome-ka ee takhasuska leh ayaa sidoo kale gacan ka geysanaya ilaalinta dhamaadka DNA, waxayna joojiyaan nidaamyada dayactirka DNA-da ee unugyada inay u daaweeyaan sidii waxyeelo in la saxo.
dhamaadka 3'