Awon suga na je sisopo latowo awon idipo oniyofosforu ti won da awon ide fosfodiesteri larin awon s between the third and fifth carbon atomu karbonu keta ati ikarun awon oruka suga itosi.. 
sègmentsments of DNA where the bases have been Chemically mọ̀dífied by methy may undergo a larger change in conformation and adopt the z form.. 