Raws li tau sau tseg ua ntej, ib qho operon yog pawg ntawm cov noob tau sau los ntawm tib tus neeg txhawb nqa kom muab ib qho mRNA nqa ntau qhov sib txuas (polycistronic mRNA). Txawm li cas los xij, eukaryotes tsuas yog txhais thawj coding ib ntus ntawm mRNA. Yog li, eukaryotes tsis tuaj yeem siv polycistronic mRNA los qhia ntau yam noob
Puas operon pom hauv eukaryotes?
Operons tshwm sim feem ntau hauv prokaryotes tab sis kuj hauv qee cov eukaryotes, suav nrog nematodes xws li C. elegans thiab txiv hmab txiv ntoo ya, Drosophila melanogaster. rRNA noob feem ntau muaj nyob rau hauv operons uas tau pom nyob rau hauv ntau yam ntawm eukaryotes nrog rau chordates.
Puas operons siv nyob rau hauv eukaryotic noob regulation?
Txawm hais tias eukaryotic noob tsis tau teeb tsa rau hauv cov neeg ua haujlwm, prokaryotic operons yog cov qauv zoo heev rau kev kawm txog kev tswj cov noob feem ntau.
Lub hom phiaj ntawm operons hauv prokaryotes yog dab tsi?
operon, genetic regulatory system pom nyob rau hauv cov kab mob thiab lawv cov kab mob nyob rau hauv uas cov noob coding rau functionality proteins yog pawg nyob rau hauv lub DNA. Qhov no tso cai rau protein synthesis los tswj kev sib koom tes hauv kev teb rau cov kev xav tau ntawm tes.
Pob tib neeg puas muaj operons?
Operons muaj ntau nyob rau hauv cov kab mob, tab sis lawv tsis tshua muaj nyob rau hauv eukaryotes xws li tib neeg … Feem ntau, ib qho operon yuav muaj cov noob uas ua haujlwm hauv tib txoj kev. Piv txwv li, ib qho kev kawm zoo operon hu ua lac operon muaj cov noob uas encode proteins koom nrog hauv kev nce thiab metabolism ntawm ib qho qab zib, lactose.
