Video: Cov lus qhia rau kev sib sau cov protein nyob qhov twg?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Messengery RNA (mRNA)
Nyob rau hauv cov tsiaj, nroj tsuag thiab fungal hlwb, lub cov lus qhia rau ua cov proteins thiab cov qauv nyob qhov twg cov proteins yog tsim muaj nyob rau hauv ob qhov chaw sib txawv. DNA khaws cia rau hauv lub nucleus, thaum cov proteins yog sib sau los ntawm cov amino acids dawb hauv cytoplasm hauv cov qauv hu ua ribosomes.
Ua raws li qhov no, qhov kev txiav txim kom raug yog dab tsi los ua cov protein?
Txhua ntu ntawm peb lub hauv paus, hu ua codon, feem ntau yog cov lej rau ib qho amino acid. (Amino acids yog lub tsev blocks ntawm cov proteins .) Ib hom RNA hu ua hloov RNA (tRNA) sib sau ua ke protein ntau , ib qho amino acid ib zaug.
Tom qab ntawd, lo lus nug yog, qhov kev txiav txim ntawm cov amino acids hauv cov protein tau txiav txim los ntawm cov noob li cas? Cov xaj ntawm deoxyribonucleotide bases hauv a noob txiav txim tus amino acid ua ntu zus ntawm ib qho tshwj xeeb protein ntau . Txij li qhov tseeb amino acids tuaj yeem cuam tshuam nrog lwm tus amino acids hauv ib yam protein ntau , qhov no thawj qauv kawg txiav txim cov duab kawg thiab yog li ntawd cov tshuaj thiab lub cev muaj zog ntawm lub protein ntau.
Ib yam li ib tug yuav nug, qhov twg ntawm lub xovtooj ntawm tes muab cov lus qhia ribosomes koj yuav ua li cas sib sau cov protein?
Cov protein yog sib dhos ntawm cov ribosomes . Lub nucleus muab coded cov lus qhia mus rau cov ribosomes , yog li lawv paub dab tsi cov proteins tsim.
Yuav ua li cas DNA code rau cov proteins?
Lub genome ntawm lub cev yog sau nyob rau hauv DNA , lossis hauv qee cov kab mob RNA. Ib feem ntawm genome uas cov lej rau a protein ntau los yog RNA yog hu ua gene. Cov noob ntawd code rau proteins yog tsim los ntawm tri-nucleotide units hu ua codons, txhua coding rau ib qho amino acid.
Pom zoo:
Cov nqe lus twg zoo tshaj plaws piav qhia txog qhov tseem ceeb ntawm cov lus qhia muaj nuj nqis?
Qhov tsis suav nrog tus nqi ntawm ib qho kev qhia rational yog qhov tseem ceeb uas tus denominator ntawm qhov kev qhia yog xoom. Tsis tas li ntawd, tus naj npawb ntawm zeros ntawm ib tug polynomial yeej ib txwm tsawg dua los yog sib npaug rau degree ntawm lub polynomial. Yog li ntawd, tus naj npawb ntawm cov txiaj ntsig tsis suav nrog cov lus qhia muaj txiaj ntsig tsis tuaj yeem tshaj li qib ntawm tus lej
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