Video: Nyob rau hauv lub cellular tivthaiv koj xav kom nrhiav tau koj genomic DNA?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
“ Nyob rau hauv uas cellular tivthaiv koj expecttofined koj caj ces DNA ?” Genomic DNA yog nrhiav tau tus nucleus.
Hais txog qhov no, nyob rau hauv dab tsi ntawm lub cell yog genomic DNA pom?
Ze li txhua cell nyob rau hauv ib tug neeg lub cev muaj tib yam DNA . Feem ntau DNA yog nyob hauv cell nucleus (qhov twg nws hu ua nuclear DNA ), tab sis tsawg npaum li cas DNA tuaj yeem yog pom nyob rau hauv themitochondria (qhov twg nws yog hu ua mitochondrial DNA ormtDNA).
Tsis tas li ntawd, cov proteins twg tuaj yeem cuam tshuam nrog DNA hauv cell? Chromosomal DNA yog khi los ntawm histones. Lwm yam cuam tshuam nuclear cov proteins tej zaum yuav suav nrog DNA polymerase los yog transcription yam. Dab tsi proteinsm yuav beassociated nrog DNA nyob rau hauv lub cell ? Thaum lub membranehasdissolved, lub DNA tso tawm rau hauv cov tshuaj, tab sis soaremany lwm hom cellular molecules.
Tsis tas li ntawd, nrhiav genomic DNA nyob qhov twg?
Cov kws tshawb fawb hais txog DNA pom nyob rau hauv lub cell lub nucleus li nuclear DNA . Lub cev tag nrho setofnuclear DNA hu ua nws genome . Dhau li ntawm DNAlocated nyob rau hauv lub nucleus, tib neeg thiab lwm yam complex kab mob kuj muaj ib tug me me ntawm DNA Nyob rau hauv lub cell lug paub asmitochondria.
Dab tsi yog txhais los ntawm genomic DNA?
Genomic deoxyribonucleic acid yog chromosomal DNA , nyob rau hauv sib piv rau ntxiv-chromosomal DNAs zoo liplasmids. Nws kuj tseem hu ua gDNA. Cov genome ntawm lub cev (encoded by the genomic DNA ) yog (biological) cov ntaub ntawv ntawm heredity uas tau dhau los ntawm ib tiam ntawm cov kab mob mus rau tom ntej.
Pom zoo:
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