Qhov txawv ntawm Knock In thiab Knockout

Cov txheej txheem:

Qhov txawv ntawm Knock In thiab Knockout
Qhov txawv ntawm Knock In thiab Knockout

Video: Qhov txawv ntawm Knock In thiab Knockout

Video: Qhov txawv ntawm Knock In thiab Knockout
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Anonim

Qhov sib txawv tseem ceeb ntawm khob hauv thiab khob tawm yog nyob ntawm txoj kev siv los tsim cov kab mob transgenic. Hauv gene khob hauv, tso cov noob tshiab tshwm sim thaum nyob rau hauv cov noob qoob loo, tshem tawm cov noob uas twb muaj lawm yuav siv qhov chaw los tsim cov kab mob transgenic.

Transgenic organisms yog cov kab mob uas muaj kev hloov pauv caj ces. 'Recombinant organisms' yog ib lub ntsiab lus rau lawv. Feem ntau, cov kab mob transgenic muaj cov yam ntxwv zoo. Thaum tsim cov kab mob transgenic, cov noob ua lub hom phiaj. Raws li qhov xav tau, cov noob tuaj yeem raug qhia lossis tshem tawm. Gene khob nyob rau hauv hais txog kev taw qhia ntawm ib tug tshiab noob thaum gene knockout hais txog kev tshem tawm ntawm ib tug noob.

Knock In dab tsi?

Knock hauv, lossis gene khob hauv, yog tus txheej txheem ntawm kev tso cov noob tshiab rau hauv lub cev. Cov noob tau muab tso rau hauv yuav tsum tau ua haujlwm raws li kev ntxig. Cov txheej txheem genetic engineering sib txawv ua tiav cov txheej txheem ntawm cov noob caj noob ces. Recombinant DNA thev naus laus zis kuj tseem hais txog cov txheej txheem ntawm kev tsim cov noob caj noob ces. Nyob rau hauv cov txheej txheem no, cov kab mob genome yuav tsum raug txiav ntawm cov chaw tshwj xeeb uas siv cov enzymes txwv, thiab tom qab ntawd ntxig cov noob tsom mus rau qhov chaw. Thaum nkag mus, lub ligase enzyme kaw cov noob tshiab rau lub genome, tsim kom muaj lub cev sib txuas.

Cov kab mob sib kis feem ntau yog siv los tsim cov khoom xav tau xws li cov vitamins, enzymes, cov tshuaj hormones hauv kev lag luam. Tsis tas li ntawd, kev siv cov noob pob hauv nas yog rau kev tshawb fawb. Lawv qhia tias cov noob sib txawv qhia tau li cas thiab coj tus cwj pwm hauv ib puag ncig thiab kev kho mob sib txawv. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau siv cov noob pob hauv nas los txiav txim siab txog kev kho mob feem ntau ntawm cov kab mob sib txawv.

Knockout yog dab tsi?

Knockout lossis gene knockout yog tus txheej txheem ntawm tshem tawm cov noob los ntawm lub cev. Cov noob tshwj xeeb ntawd tau ua tiav tag nrho thaum lub sijhawm ua haujlwm. Cov txheej txheem genetic engineering sib txawv yog qhov tsim nyog txhawm rau txhawm rau tshem tawm cov noob. Cov kab mob tshwm sim yog cov kab mob transgenic nrog kev hloov pauv caj ces muaj pes tsawg leeg. Kev ua kom tiav ntawm ib qho noob caj noob ces yuav tshwm sim los ntawm kev qhia txog kev hloov mus rau cov noob tshwj xeeb lossis los ntawm kev tshem tawm cov noob tshwj xeeb los ntawm kev txwv kev zom zaub mov.

Qhov txawv ntawm Knock In thiab Knockout
Qhov txawv ntawm Knock In thiab Knockout

Daim duab 02: Gene Knockout nas

Ua ntej, cov noob pob txha tsuas yog cuam tshuam cov kab mob hu ua Escherichia coli. Txawm li cas los xij, tam sim no muaj ntau cov nas nas khawm tau tsim. Knockout nas ua lub luag haujlwm tseem ceeb hauv kev tshawb fawb tshawb fawb. Lawv muab cov lus xaus txog yuav ua li cas tshem tawm qee cov noob ua haujlwm ntawm kev ciaj sia thiab muaj sia nyob ntawm lub cev. Txawm li cas los xij, muaj ntau yam kev coj ncaj ncees uas cuam tshuam txog lub tswv yim no.

Gene knockout ua lub luag haujlwm tseem ceeb hauv kev tshuaj xyuas cov noob caj noob ces ntawm cov kev kho mob sib txawv thiab ntsuas qhov ua tau zoo ntawm kev kho mob ntawm cov noob sib txawv.

Dab tsi zoo sib xws ntawm Knock In thiab Knockout?

  • Ob leeg siv cov thev naus laus zis DNA sib txuas thiab cov txheej txheem caj ces sib txawv.
  • Gene khob hauv thiab khob tawm ua rau kev tsim cov kab mob hloov pauv.
  • Lawv tuaj yeem ua tiav ntawm cov kab mob nyob hauv txhua lub koom haum.
  • Peb tau siv ob txoj hauv kev tshawb fawb thiab hauv kev lag luam.

Qhov txawv ntawm Knock In thiab Knockout yog dab tsi?

Qhov txawv ntawm khob hauv thiab khob yog nyob ntawm cov txheej txheem ntawm kev tsim cov kab mob transgenic. Knock hauv lossis gene khob hauv yog txheej txheem ntawm kev ntxig cov noob tshiab rau hauv lub cev. Hauv qhov sib piv, gene knockout yog tus txheej txheem ntawm kev ua kom tiav lossis tshem tawm cov noob xav tau. Txhua txoj kev ua rau cov txiaj ntsig sib txawv nyob ntawm qhov hloov pauv.

Cov hauv qab no nthuav tawm cov ntaub ntawv ntxiv txog qhov sib txawv ntawm khob hauv thiab khob.

Qhov sib txawv ntawm Knock In thiab Knockout hauv Tabular Form
Qhov sib txawv ntawm Knock In thiab Knockout hauv Tabular Form

Summary – Knock In vs Knockout

Knock hauv thiab knockout hais txog ob txoj hauv kev tsim cov kab mob hloov pauv los ntawm kev ntxig lossis ua kom cov noob tsis ua tiav. Yog li, ob txoj kev no yog qhov tseem ceeb hauv kev tshawb fawb thiab hauv kev siv ntau yam. Recombinant DNA thev naus laus zis yog cov txheej txheem ntawm kev tsim cov noob pob hauv thiab cov noob qoob loo. Gene khob hauv thiab knockout ua lub luag haujlwm muaj txiaj ntsig; Txawm li cas los xij, kev txwv tsis pub muaj kev ncaj ncees tom qab tsim cov noob pob hauv thiab khob tawm yog qhov teeb meem ntawm kev sib cav hauv zej zog kev tshawb fawb. Yog li, qhov no qhia txog qhov sib txawv ntawm khob hauv thiab khob tawm.

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