ʻO ka DNA-Only Column he kolamu hoʻoheheʻe silica membrane kūikawā, i hui pū ʻia me nā reagents formula kū hoʻokahi a Foregene, hiki ke hoʻopaʻa maikaʻi a paʻa pono i ka DNA, a hiki ke wehe i ka RNA, nā protein haumia, nā ion a me nā mea hoʻohui ʻē aʻe i loko o nā cell i ka nui loa.Hiki i ke kaʻina hana hoʻokolohua ke wehe i ka RNA i loko o ka DNA genomic me ka ʻole o ka hoʻohui ʻana i ka RNase, a pale aku i ka hale hana mai ka haumia ʻana e ka exogenous RNase.

Ma ka DNA-Only Column, hiki ke hoʻopaʻa ʻia ka DNA plasmid i ka membrane silica ma lalo o nā kūlana paʻakai kiʻekiʻe, a laila e hoʻokaʻawale ʻia ka DNA mai ka matrix silicon me ka paʻakai paʻakai haʻahaʻa a i ʻole ka wai.Hiki ke hoʻohana ʻia ka DNA i loaʻa no nā hoʻokolohua molecular biology e like me ka restriction digestion, PCR, sequencing, hale waihona puke, hoʻololi bacteria, a me ka hoʻololi.

Pono

ʻAʻole pono e hoʻohui i ka RNase e wehe i ka RNA mai ka genomic DNA, e pale ana i ka hale hana mai ka haumia ʻana e ka exogenous RNase.

Palapala noi

ʻO ka unuhi ʻana o DNA mai nā laʻana e like me nā plasmids, nā holoholona, ​​​​nā mea kanu, nā maʻi virus, ka wai, nā feces, ka lepo, a me nā swabs buccal.