Nyob rau hauv biology, epigenetics yog kev kawm txog kev hloov pauv phenotype uas tsis cuam tshuam nrog kev hloov pauv hauv DNA ib ntus. Greek prefix epi-hauv epigenetics qhia cov yam ntxwv uas yog "saum toj ntawm" lossis "ntxiv rau" lub hauv paus caj ces ib txwm muaj rau kev qub txeeg qub teg.
Epigenetic txhais li cas?
=Epigenetics yog ib thaj chaw tshiab ntawm kev tshawb fawb uas kawm txog cov kev hloov pauv uas tshwm sim los ntawm kev ua kom thiab deactivation ntawm cov noob yam tsis muaj kev hloov pauv hauv cov hauv paus DNA ib ntus ntawm cov kab mob. Lo lus epigenetics yog los ntawm Greek keeb kwm thiab txhais tau tias dhau mus thiab saum toj no (epi) lub genome
Dab tsi yog epigenetics rau dummies?
Epigenetics yog qhov zoo tshaj plaws txhais tau tias yog kev kawm txog kev hloov pauv hauv cov kab mob coj los ntawm kev hloov pauv ntawm cov noob qhia, tsis yog los ntawm kev hloov pauv ntawm cov caj ces hauv daim ntawv ntawm DNA.… Qhov paub zoo tshaj plaws ntawm cov no yog methylation, qhov twg ib pawg methyl khi rau cytosine ntawm qhov ncab ntawm DNA, thiab ua rau nws tsis muaj zog.
Epgenetic txhais li cas hauv kev puas siab puas ntsws?
Reviewed by Psychology Today Staff. Epigenetics yog txoj kev tshawb fawb ntawm qhov chaw ib puag ncig thiab lwm yam tuaj yeem hloov pauv txoj hauv kev uas cov noob tau nthuav tawmThaum cov kev hloov pauv hauv epigenetic tsis hloov qhov sib lawv liag ntawm cov noob caj noob ces, lawv tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev loj hlob.
Methylation txhais li cas?
Hauv kev tshawb fawb tshuaj, methylation txhais tau tias qhov sib ntxiv ntawm ib pawg methyl ntawm ib lub substrate, los yog hloov ntawm ib qho atom (los yog pab pawg) los ntawm pawg methyl Methylation yog ib daim ntawv. ntawm alkylation, nrog ib pawg methyl hloov lub atom hydrogen. … Qhov sib piv ntawm methylation yog hu ua demethylation.
