Video: Dab tsi yog cov tshuaj tiv thaiv kab mob hauv cov plasmid?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Kev tiv thaiv plasmids los ntawm kev txhais nqa ib lossis ntau dua tshuaj tiv thaiv kab mob . Lawv nquag nrog cov noob encoding virulence determinants, tshwj xeeb enzymes los yog tsis kam ua rau cov hlau hnyav hnyav. Ntau tsis kam gene feem ntau teem rau hauv tsis kam cassettes.
Tsis tas li ntawd, dab tsi yog cov tshuaj tiv thaiv kab mob gene?
Tshuaj tiv thaiv kab mob yog lub peev xwm ntawm cov kab mob microorganism los tiv thaiv cov teebmeem ntawm ib qho tshuaj tua kab mob . Nws yog ib hom tshuaj tshwj xeeb tsis kam . Qhov no tuaj yeem yog ib txoj hauv kev zoo ntawm kev cog cov khoom siv dag zog noob nyob rau hauv lub microorganism. Tshuaj tiv thaiv kab mob yog qhov tshwm sim ntawm evolution ntawm kev xaiv ntuj.
Ib yam li ntawd, plasmids muab tshuaj tua kab mob rau cov kab mob li cas? Xws li plasmids , npe drug- tsis kam ( R ) yam tseem ceeb, feem ntau kuj qhia txog kev tsim ntawm kev sib deev pili, filamentous appendages ntawm lub xov tooj ntawm tes. Cov no txhawb kab mob conjugation, thiab li no tso cai rau kev hloov ntawm ib daim qauv ntawm tus plasmid los ntawm tiv taus kab mob mus rau ib tug uas yav tas los tej zaum yuav muaj tshuaj-rhiab heev.
Ib sab saum toj no, plasmids qhia cov tshuaj tiv thaiv kab mob li cas?
Plasmids tuaj yeem hloov ntawm cov kab mob sib txawv Qhov no txhais tau tias cov kab mob tuaj yeem ua tau tiv taus mus rau ntau yam tshuaj tua kab mob ib zaug los khaws ib leeg plasmid . Tom qab ntawd lawv ua multidrug- tiv taus . Tsis tas li ntawd, cov noob uas cuam tshuam cov kab mob virulence kuj nquag pom ntawm plasmids.
Cov piv txwv ntawm cov tshuaj tiv thaiv kab mob yog dab tsi?
Piv txwv ntawm cov kab mob uas yog tiv taus rau tshuaj tua kab mob suav nrog methicillin- tiv taus Staphylococcus aureus (MRSA), penicillin- tiv taus Enterococcus thiab multidrug, tiv taus Mycobacterium tuberculosis (MDR-TB), uas yog tiv taus rau ob hom kab mob ntsws, isoniazid thiab rifampicin.
Pom zoo:
Thaum ua qhov tshuaj ntsuam xiav dawb cov kab mob hauv cov kab mob muaj?
Hloov pauv, cov kab dawb dawb tsis tuaj yeem metabolize X-Gal los tsim cov xim xiav, vim tias lawv tsis tsim cov β-galactosidase ua haujlwm tom qab noj plasmid nqa cov DNA tso thiab cuam tshuam cov lacZ α noob. Cov kab mob dawb no muaj cov kab mob recombinant thiab yuav tsum tau xaiv (Daim duab 1)
Dab tsi yog cov tshuaj tiv thaiv ntawm daim ntawv xiav litmus thaum dipped rau hauv cov kua qaub uas muaj tshuaj?
Daim ntawv liab litmus reacts rau alkaline tshuaj los ntawm tig xiav, thaum xiav litmus ntawv reacts rau acidic tshuaj los ntawm tig liab
Thaum twg Txoj Cai Tiv Thaiv Kev Tiv Thaiv Kab Mob tau dhau lawm?
Xyoo 1990, Congress tau tshaj tawm Txoj Cai Tiv Thaiv Kev Ua Phem Txhaum Cai uas hais tias: 'Lub Chaw Tiv Thaiv Ib puag ncig yuav tsum tsim kom muaj qhov kev txo qis uas sau thiab tshaj tawm cov ntaub ntawv, muab kev pab nyiaj txiag rau lub xeev, thiab siv lwm yam dej num.'
Koj puas tuaj yeem tso tshuaj tiv thaiv kab mob hauv dej?
Tshawb xyuas koj lub pas dej ntau zaus kom paub meej tias tsis muaj kua muag los yog cov dej ntws tawm uas yuav ua rau cov dej ntws mus txog qhov chaw. Tsis txhob ntxiv cov khoom de-icing lossis tshuaj tua kab mob rau hauv lub qhov dej. Nws yuav tsis tiv thaiv kev puas tsuaj rau lub caij ntuj no, tab sis nws yuav ua rau muaj kev phom sij loj rau menyuam yaus, tsiaj txhu thiab tsiaj qus
CIA cov neeg sawv cev puas muaj kev tiv thaiv kev tiv thaiv kab mob?
Kev tiv thaiv los ntawm kev tiv thaiv kev cai lij choj, cov neeg ua haujlwm nrhiav neeg ua haujlwm hauv zos ua CIA cov neeg sawv cev los muab cov kev txawj ntse zais cia thiab, tshwj xeeb tshaj yog nyob rau hauv Lub Ntiaj Teb Thib Peb, los pab hauv Lub Chaw Haujlwm tswj hwm lub teb chaws txoj haujlwm sab hauv