Lub tsev qiv ntawv DNA siv rau dab tsi?
Lub tsev qiv ntawv DNA siv rau dab tsi?

Video: Lub tsev qiv ntawv DNA siv rau dab tsi?

Video: Lub tsev qiv ntawv DNA siv rau dab tsi?
Video: Tub ntxoov kav Shaman ntu 265 - tawm tsam kev ncaj ncees - huab tais nplog - ua rog 2024, Kaum ib hlis
Anonim

A DNA Library yog ib qho kev sau ua ke ntawm cloned DNA tawg los ntawm tes, nqaij, lossis kab mob. DNA cov tsev qiv ntawv ua tau siv cais cov noob tshwj xeeb ntawm kev txaus siab, raws li lawv feem ntau suav nrog tsawg kawg ib feem uas muaj cov noob.

Ua li no, lub hom phiaj ntawm lub tsev qiv ntawv genomic yog dab tsi?

A tsev qiv ntawv genomic yog ib phau ntawm tag nrho genomic DNA los ntawm ib lub cev. Genomic tsev qiv ntawv feem ntau yog siv rau kev sib txuas lus. Lawv tau ua lub luag haujlwm tseem ceeb hauv tag nrho genome sequencing ntawm ntau yam kab mob, suav nrog tib neeg genome thiab ntau yam kab mob.

Qhov thib ob, dab tsi yog DNA tsev qiv ntawv quizlet? DNA Library . Genomic DNA Library muaj tag nrho cov nucleotides los ntawm ib yam kab mob (genes, introns, thiab repetitive sequences). DNA los ntawm cov ntaub so ntswg raug cais tawm, txiav nrog kev txwv cov enzymes, tom qab ntawd tso rau hauv plasmids, tsim ua plasmid tsev qiv ntawv . DNA fragments tej zaum yuav yog ib los yog ib feem ntawm ib tug noob.

Cov lus nug tseem yog, lub tsev qiv ntawv DNA muaj dab tsi?

A DNA tsev qiv ntawv yog ib phau ntawm DNA fragments uas tau cloned rau hauv vectors kom cov kws tshawb fawb tuaj yeem txheeb xyuas thiab cais cov DNA fragments uas txaus siab rau lawv mus kawm ntxiv. Yeej muaj ob hom ntawm tsev qiv ntawv : genomic DNA thiab cDNA tsev qiv ntawv.

Dab tsi yog qhov txawv ntawm lub tsev qiv ntawv genomic thiab lub tsev qiv ntawv cDNA?

Lub ntsiab sib txawv : genomic DNA muaj introns, cDNA tsis yog. Tab sis koj nrhiav tsis tau cDNA hauv cell (nquag). Kev koom ua ke ntawm plasmid txhais tau tias yog genomic DNA yuav ntev dua.

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