Kev hloov gene hauv cov kab mob yog dab tsi?
Kev hloov gene hauv cov kab mob yog dab tsi?

Video: Kev hloov gene hauv cov kab mob yog dab tsi?

Video: Kev hloov gene hauv cov kab mob yog dab tsi?
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Kab rov tav noob hloov pab kab mob los teb thiab hloov mus rau lawv ib puag ncig sai dua los ntawm kev tau txais cov DNA loj ntawm lwm tus kab mob hauv ib leeg hloov . Kab rov tav hloov gene yog ib tug txheej txheem nyob rau hauv lub cev hloov caj ces cov khoom siv rau lwm lub cev uas tsis yog nws cov xeeb ntxwv.

Ib yam li ntawd, tej zaum koj yuav nug, yuav ua li cas hloov cov noob hauv cov kab mob?

Kab rov tav noob hloov muaj tshwm sim ntawm peb lub ntsiab mechanisms: transformation, transduction los yog conjugation. Kev hloov pauv muaj feem cuam tshuam txog ntu luv ntawm DNA liab qab los ntawm ib txwm hloov pauv kab mob . Transduction suav nrog hloov DNA los ntawm ib tug kab mob mus rau lwm yam ntawm bacteriophages.

Ib yam li ntawd, cov noob tau pauv ntawm ib lub cev mus rau lwm tus li cas? Lawv thawj 'txiav' noob siv cov cuab yeej cuab tam 'txiab' - txwv enzymes - thiab muab tso rau hauv DNA los ntawm lwm lub cev zoo li cov kab mob los yog cov poov xab uas nws tau theej ntau txhiab lossis ntau lab lub sijhawm. Molecular qauv ntawm kev txwv enzyme khi rau DNA.

Ib yam li ib tug yuav nug, dab tsi yog txhais los ntawm kev hloov cov noob?

Kho mob Txhais ntawm Gene hloov Gene hloov : Kev nkag mus ntawm qhov tsis sib xws caj ces cov ntaub ntawv nyob rau hauv daim ntawv ntawm DNA rau hauv hlwb. Muaj ntau qhov laj thawj ua hloov gene . Tej zaum qhov tseem ceeb ntawm cov laj thawj no yog kev kho cov kab mob siv noob hloov muab cov neeg mob kho noob.

Dab tsi yog qhov txawv ntawm kab rov tav thiab ntsug hloov cov noob?

Kab rov tav hloov cov noob (HGT) txhais tau tias yog hloov ntawm caj ces khoom nruab nrab cov kab mob tsis sib txuas nrog kev faib cell [1–3]. Piv txwv li, ntsug qub txeeg qub teg yog kis ntawm caj ces cov ntaub ntawv los ntawm niam cell mus rau tus ntxhais cell thaum lub sij hawm faib cell.

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