Video: Vim li cas PCR tseem ceeb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov Polymerase Chain Reaction ( PCR ) yog ib tseem ceeb cuab yeej rau ntau yam kev siv. Piv txwv li, nws tuaj yeem siv los nthuav cov qauv DNA thaum tsis txaus los soj ntsuam (xws li cov qauv ntawm DNA los ntawm qhov chaw ua txhaum cai, cov qauv qub txeeg qub teg), raws li ib txoj hauv kev txheeb xyuas cov noob paj, lossis kuaj rau kab mob.
Ib yam li ntawd, nws raug nug, vim li cas PCR tseem ceeb?
PCR Nws kuj tseem muaj txiaj ntsig hauv ntau qhov chaw kuaj mob tshiab thiab cov txheej txheem kho mob, suav nrog DNA ntiv tes, kuaj pom cov kab mob lossis kab mob (tshwj xeeb yog AIDS), thiab kuaj cov kab mob caj ces thiab npaj cov qauv rau kev kuaj DNA genealogical.
Tsis tas li ntawd, vim li cas PCR cov kauj ruam tsim nyog? Vim DNA yog microscopic, ntau cov ntawv luam ntawm nws yuav tsum muaj nyob ua ntej peb tuaj yeem pom nws ntawm qhov muag. Qhov no yog ib feem ntawm yog vim li cas PCR yog ib tseem ceeb cuab yeej: nws tsim cov ntawv luam txaus ntawm DNA ib ntus uas peb tuaj yeem pom lossis tswj hwm thaj tsam ntawm DNA.
Yog li ntawd, vim li cas PCR tseem ceeb rau forensics?
Ib qho kev pab ntawm PCR rau forensic kev kawm. PCR tuaj yeem siv los ua ib qho cuab yeej hauv kev tshuaj ntsuam genetic fingerprinting. Lub tshuab no tuaj yeem txheeb xyuas ib tus neeg los ntawm ntau lab tus neeg. Piv txwv li, cov qauv me me ntawm DNA cais los ntawm qhov chaw ua txhaum cai tuaj yeem muab piv nrog DNA los ntawm cov neeg raug liam, lossis piv nrog DNA database.
Lub hom phiaj ntawm polymerase saw tshuaj tiv thaiv PCR yog dab tsi?
Polymerase chain reaction, los yog PCR, yog lub chaw kuaj mob txheej txheem siv los ua ntau daim ntawv luam ntawm ib ntu ntawm DNA. PCR yog qhov tseeb heev thiab tuaj yeem siv los nthuav tawm, lossis luam tawm, ib lub hom phiaj DNA tshwj xeeb los ntawm kev sib xyaw ntawm DNA molecules.
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