Vim li cas kev zom zaub mov tsis tiav tshwm sim?
Vim li cas kev zom zaub mov tsis tiav tshwm sim?

Video: Vim li cas kev zom zaub mov tsis tiav tshwm sim?

Video: Vim li cas kev zom zaub mov tsis tiav tshwm sim?
Video: Vim li cas tus ntseeg hos yuav tsum raug kev sim siab 2024, Kaum ib hlis
Anonim

Tsis tiav digestion yog ib qho teeb meem nquag ntsib thaum siv txwv endonucleases. Kev zom zaub mov tsis tiav muaj tshwm sim thaum ntau dhau los yog tsawg dhau enzyme yog siv. Muaj cov kab mob paug hauv cov qauv DNA tau inhibit cov enzymes, kuj ua rau kev zom zaub mov tsis tiav.

Ntxiv rau qhov no, qhov tsis tiav digestion txhais li cas?

Ib digestive tsis tiav lub kaw lus tsuas muaj ib qho qhib. Cov khoom noj mus rau qhov qhib tib yam uas cov khib nyiab tawm. Nws yuav ua zoo li koj lub qhov quav yog qhib tib yam li koj lub qhov ncauj! Lawv tsis muaj qhov zoo nkauj plab system lossis lwm yam kabmob uas peb muaj.

Ib tus kuj tseem yuav nug, vim li cas kuv qhov kev txwv txwv tsis ua haujlwm? Tsis tiav los tsis muaj kev zom zaub mov vim kev ua haujlwm enzyme thaiv los ntawm DNA methylation. Yog tias koj cov enzyme ua haujlwm thiab digests cov tswj DNA thiab tus cov tshuaj tiv thaiv yog teeb tsa siv cov kev mob zoo, tab sis koj tseem pom teeb meem nrog kev zom zaub mov , nws yuav yog vim tus enzyme yog inhibited los ntawm methylation ntawm tus qauv DNA.

Hais txog qhov no, lub hom phiaj ntawm kev txwv digest yog dab tsi?

A txwv digest yog txheej txheem siv hauv kev tshawb fawb txog molecular los npaj DNA rau kev tshuaj xyuas lossis lwm yam kev ua. Cov no cov enzymes hu ua txwv endonucleases lub txwv enzymes , thiab lawv muaj peev xwm cleave DNA molecules ntawm txoj hauj lwm ntawm qhov tshwj xeeb luv luv sequences ntawm lub hauv paus tam sim no.

Yuav ua li cas txwv kev zom cov zom zaub mov kom zoo dua?

Siv tsis pub ntau tshaj qhov pom zoo enzyme tus nqi (piv txwv li, 10 units ntawm enzyme ib microgram ntawm DNA). Txo tus nqi ntawm enzyme hauv cov tshuaj tiv thaiv, yog tias tsim nyog. Zam kev ua kom ntev ntev ntawm kev zom zaub mov cov tshuaj tiv thaiv Siv cov tshuaj tiv thaiv tsis zoo.

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