Video: Retrovirus mediated transfer yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov noob no hloov yog kho kom haum xeeb los ntawm tus neeg nqa khoom lossis vector, feem ntau yog tus kab mob lossis plasmid. A retrovirus yog tus kab mob uas nqa nws cov khoom siv caj ces hauv daim ntawv ntawm RNA es tsis yog DNA. Txheej txheem: Tam sim ntawd tom qab kis kab mob, lub retrovirus tsim ib daim qauv DNA ntawm nws RNA genome siv nws cov ntawv thim rov qab.
Hauv qhov no, dab tsi yog retroviruses piav qhia?
Retrovirus : Tus kab mob uas tsis yog DNA tab sis ntawm RNA. Retroviruses muaj ib qho enzyme, hu ua thim rov qab transcriptase, uas muab lawv cov cuab yeej tshwj xeeb ntawm kev sau lawv cov RNA rau hauv DNA tom qab nkag mus rau hauv lub cell.
Kuj Paub, vim li cas cov kab mob retroviruses txaus ntshai? A retrovirus Nws txawv me ntsis vim tias nws ntxig nws cov genome rau hauv tus tswv tsev genome, yog li dhau los ua ib feem ntawm cov tswv tsev cell. Feem ntau retrovirus yog human immunodeficiency virus lossis HIV, uas qhia txog lub tswv yim ntawm kev tuag txaus ntshai retroviruses yog.
Ntxiv mus, embryonic qia cell mediated hloov yog dab tsi?
Embryonic qia cell - kho cov noob hloov . Nws yog kev qhia txog DNA rau hauv embryonic qia hlwb (ES hlwb ). ES hlwb tuaj yeem sib txawv rau txhua hom hlwb thaum qhia rau lwm tus lub embryo . Qhov no ua rau muaj qee cov phev nqa cov DNA ntxiv.
Yuav ua li cas retroviruses?
Retroviruses yog "retro" vim lawv thim rov qab cov kev taw qhia ntawm cov txheej txheem luam cov noob caj noob ces. Feem ntau, cov hlwb hloov DNA rau hauv RNA thiaj li ua tau ua hauv cov protein. Tom qab ntawd lub cell tuaj yeem luam cov DNA. Lub xovtooj ntawm tes kuj tseem tuaj yeem sau cov DNA rov qab rau hauv RNA ua thawj kauj ruam hauv kev tsim cov kab mob sib kis.
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