Dab tsi ntawm cov plaub hau feem ntau yuav ua rau muaj txiaj ntsig DNA pov thawj?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Dab tsi ib feem ntawm plaub hau feem ntau yuav ua rau muaj txiaj ntsig DNA pov thawj ? Cov ntaub so ntswg follicular adhering rau hauv paus, hauv paus nws tus kheej, los yog follicular tag. Follicular tag yog qhov zoo tshaj plaws.

Hais txog qhov no, qhov tseem ceeb forensic tseem ceeb ntawm lub cortex yog dab tsi?

Lub cortex muab nws qhov tseem ceeb forensic tseem ceeb los ntawm tus qhov tseeb tias nws yog embedded nrog cov xim granules uas muab cov plaub hau nws cov xim. Cov xim, cov duab, thiab kev faib tawm ntawm cov granules no muab cov ntsiab lus tseem ceeb ntawm kev sib piv ntawm cov plaub hau ntawm cov neeg sib txawv.

Ib yam li ntawd, thawj kauj ruam thiab tseem ceeb tshaj plaws hauv kev kuaj fiber ntau yog dab tsi? Hauv kev soj ntsuam ntawm fibers , cov thawj thiab tseem ceeb tshaj plaws hauv kev xeem yuav yog: Fibers muab tau los ntawm tej yam ntuj tso los yog hluavtaws polymers; tus fibers Feem ntau yog tsim los ntawm kev yuam cov khoom siv polymeric los ntawm lub qhov ntawm lub spinneret.

Ntxiv rau qhov no, dab tsi ntawm cov plaub hau tuaj yeem txheeb xyuas DNA?

Cov plaub hau follicle nyob rau hauv lub hauv paus ntawm tib neeg cov plaub hau muaj cellular khoom nplua nuj nyob rau hauv DNA . Yuav kom siv tau rau DNA tsom xam , cov plaub hau yuav tsum tau rub tawm ntawm lub cev - cov plaub hau uas tau tawg tawm tsis muaj DNA.

Vim li cas cov plaub hau zoo rau kev tsim kev txheeb xyuas?

Ob yam uas ua plaub hau ib zoo kev rau tsim tus kheej tus kheej : Nws tsis kam mus rau cov tshuaj decomposition thiab nws lub peev xwm khaws cov yam ntxwv ntawm lub sijhawm ntev (cuticle). Lawv ib txwm taw tes rau lub ntsis.