Puas yog pib codon txhais?
Puas yog pib codon txhais?

Video: Puas yog pib codon txhais?

Video: Puas yog pib codon txhais?
Video: puas yog koj ntshai yuav kuv ntsaim vaj 2022 -2023 2024, Kaum ib hlis
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Cov pib codon yog thawj codon ntawm tus tub txib RNA (mRNA) cov ntawv sau tseg txhais los ntawm ribosome. Cov pib codon ib txwm muaj cai rau methionine hauv eukaryotes thiab Archaea thiab hloov kho Met (fMet) hauv cov kab mob, mitochondria thiab plastids. Feem ntau pib codon is AUG.

Ntawm no, yog qhov nres codon txhais?

Muaj 3 STOP codons in the genetic code - UAG, UAA, and UGA. Cov no codons teeb liab qhov kawg ntawm cov saw hlau polypeptide thaum lub sij hawm txhais lus . Cov no codons kuj paub tias tsis muaj tseeb codons los yog txiav tawm codons raws li lawv tsis code rau cov amino acid.

Ib yam li ntawd, yog qhov pib codon suav nrog cov protein? Methionine yog teev los ntawm cov codon AUG, uas tseem hu ua the pib codon . Yog li ntawd, methionine yog thawj amino acid rau dock nyob rau hauv lub ribosome thaum lub sij hawm synthesis ntawm cov proteins . Tryptophan yog qhov tshwj xeeb vim nws tsuas yog cov amino acid uas tau teev tseg los ntawm ib leeg codon.

Ib yam li ntawd, puas pib codon suav ua cov amino acid?

Cov pib codon is AUG. Methionine yog tib yam amino acid qhia los ntawm ib qho xwb codon , AUG. Cov nres codons UAG, UAA, and UGA. Lawv encode no amino acid.

Puas yog ATG pib codon?

ATG lub AUG. Cov codon rau Methionine; kev txhais lus pib codon . Feem ntau, cov protein txhais tau tsuas yog pib ntawm Methionine codon (txawm tias qhov no codon tuaj yeem pom lwm qhov hauv cov protein ntau ib yam). Hauv eukaryotic DNA, qhov sib lawv liag yog ATG ; RNA is AUG.

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