Dab tsi yog qee txoj hauv kev DNA tuaj yeem hloov kho?
Dab tsi yog qee txoj hauv kev DNA tuaj yeem hloov kho?

Video: Dab tsi yog qee txoj hauv kev DNA tuaj yeem hloov kho?

Video: Dab tsi yog qee txoj hauv kev DNA tuaj yeem hloov kho?
Video: Koj lub siab yog dab tsi ua? 8/3/2017 2024, Kaum ib hlis
Anonim

17.1B: Basic Techniques to Manipulate Cov khoom siv noob caj noob ces ( DNA thiab RNA) Cov txheej txheem yooj yim siv hauv cov khoom siv caj ces manipulation muaj xws li extraction, gel electrophoresis, PCR, thiab blotting txoj kev.

Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog qee txoj hauv kev genes tuaj yeem siv tau?

Genetic engineering yog kev hloov kho ntawm lub cev phenotype los ntawm kev tswj nws cov khoom siv caj ces. Ib txhia genetic engineering siv lub hauv paus ntsiab lus ntawm recombination. Recombination yog txheej txheem los ntawm cov noob tshiab tso rau hauv cov kab mob DNA "Lub plasmid".

Ib tug kuj yuav nug, cov kws tshawb fawb siv cov txheej txheem dab tsi los tswj DNA? Cov Cov txheej txheem kws tshawb fawb siv los tswj DNA pib los ntawm kev kawm thiab hloov DNA molecules. Muaj cov txheej txheem sib txawv ntawm yuav ua li cas molecular biologists extract DNA los ntawm cov hlwb, lawv txiav DNA mus rau hauv me me, ces txheeb xyuas qhov sib lawv liag ntawm cov hauv paus hauv lub DNA molecule thiab ua unlimited luam ntawm lub DNA.

Ib sab saum toj no, dab tsi yog DNA manipulation?

Genetic engineering yog txheej txheem ntawm kev siv recombinant DNA (rDNA) thev naus laus zis los hloov kho caj ces ntawm lub cev. Kev lig kev cai, tib neeg muaj tswj genomes ncaj qha los ntawm kev tswj kev yug me nyuam thiab xaiv cov xeeb ntxwv nrog cov yam ntxwv xav tau.

Yuav ua li cas tib neeg manipulate genetic hloov hauv transgenesis?

Rau recap, genetic manipulation yog ib txoj kev ua tiav los tswj lub genome ntawm lub cev nyob rau hauv kev txiav txim rau tsim cov yam ntxwv uas xav tau. Yav dhau los, qhov no tau ua tiav los ntawm kev xaiv yug me nyuam, uas yog thaum qhov kev xav tau raug pom nyob rau hauv lub cev, thiab tib neeg tom qab ntawd yug lub cev nyob rau hauv kev cia siab ntawm qhov zoo li ntawd tau dhau mus.

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