Video: Dab tsi yog cov protein hauv DNA?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov protein yog cov loj, complex molecules uas ua si ntau lub luag haujlwm tseem ceeb hauv lub cev. Lawv ua haujlwm feem ntau hauv cov hlwb thiab xav tau rau cov qauv, kev ua haujlwm, thiab kev tswj hwm ntawm lub cev cov ntaub so ntswg thiab cov kabmob. Lawv kuj pab tsim cov molecules tshiab los ntawm kev nyeem cov ntaub ntawv caj ces khaws cia rau hauv DNA.
Ib yam li ntawd, plaub proteins hauv DNA yog dab tsi?
Muaj qhov pib plaub nucleotide bases, uas ua rau DNA . Adenine (A), Guanine (G), Thymine (T) thiab Cytosine (C).
I.a. Cov DNA , RNA thiab Cov protein.
| RNA | DNA |
|---|---|
| Siv cov ntaub ntawv protein-encoding | Khaws cov ntaub ntawv protein-encoding |
Tsis tas li ntawd, cov proteins hauv cov noob caj noob ces yog dab tsi? A protein ntau yog tsim los ntawm ib los yog ntau dua chains ntev ntawm cov amino acids, qhov sib lawv liag ntawm DNA ib theem zuj zus ntawm cov noob uas encodes nws. Cov protein ua si ntau lub luag haujlwm hauv cell, suav nrog cov qauv (cytoskeleton), mechanical (muscle), biochemical (enzymes), thiab cell signaling (hormones).
Kuj tseem paub yog, cov protein ua los ntawm DNA li cas?
Thaum lub sij hawm tus txheej txheem ntawm transcription, cov ntaub ntawv khaws cia nyob rau hauv ib tug gene DNA hloov mus rau ib qho zoo sib xws molecule hu ua RNA (ribonucleic acid) nyob rau hauv lub cell nucleus. Ib hom RNA hu ua hloov RNA (tRNA) sib sau ua ke protein ntau , ib qho amino acid ib zaug.
Dab tsi yog qhov txawv ntawm DNA thiab protein?
DNA muaj cov ntaub ntawv keeb kwm ntawm tag nrho cov kab mob nyob. Cov protein yog cov molecules loj ua los ntawm 20 me me molecules hu ua amino acids. Txhua yam kab mob muaj sia muaj tib yam 20 amino acids, tab sis lawv tau npaj rau hauv txawv txoj kev thiab qhov no txiav txim qhov txawv muaj nuj nqi rau txhua tus protein ntau.
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