Video: Dab tsi yog DNA muaj cov cai rau?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Gene. Ib ntu ntawm a DNA molecule (ib theem ntawm cov hauv paus) uas cov lej rau ib qho protein thiab txiav txim siab qhov yam ntxwv (phenotype) ntawm tus kheej. Ib gene yog lub hauv paus unit ntawm heredity nyob rau hauv lub cev muaj sia.
Ib yam li ntawd, nws raug nug, DNA qhov kawg code rau qhov zoo li cas?
Protein thiab DNA Qhov sib lawv liag ntawm nucleotides hauv DNA Cov noob txiav txim siab qhov kev txiav txim ntawm cov amino acids hauv cov protein. Qhov no yog qhov kev sib txuas ncaj qha ntawm koj cov noob thiab koj tus kheej yam ntxwv . Lub mechanism yog ob-kauj ruam txheej txheem. Ua ntej ib qho enzyme transscribes a noob mus rau qhov nruab nrab biochemical hu ua ribonucleic acid, los yog RNA.
Ib yam li ntawd, cov lus qhia rau qhov zoo nyob qhov twg? Txhua lub cev xav tau ib txheej cov lus qhia rau kev qhia nws yam ntxwv . Heredity yog qhov hla ntawm cov no cov lus qhia los ntawm ib tiam mus rau lwm tus. Cov ntaub ntawv keeb kwm muaj nyob hauv cov noob, nyob nyob rau hauv chromosomes ntawm txhua lub cell. Txhua lub noob muaj ib chav tsev ntawm cov ntaub ntawv.
Ib yam li ntawd, DNA cuam tshuam li cas rau cov cwj pwm?
"Ua hauj lwm Subunits ntawm DNA ." Ib sequence of DNA qhia txog qhov sib lawv liag ntawm cov amino acids ntawm ib qho protein tshwj xeeb koom nrog hauv kev qhia ntawm a qhov zoo . Cov qauv sib txawv ntawm tib lub noob hu ua alleles. Homologous chromosomes muaj tib qhov sib lawv liag ntawm cov gene chaw uas tswj cov yam ntxwv tib yam ( yam ntxwv ).
Puas yog DNA yog binary code?
DNA as a Binary Code . Cov DNA triplet code kuj ua haujlwm raws li a binary code . Vim hais tias ob lub nplhaib sib txuas tsis tuaj yeem khi rau ob lub nplhaib sib txuas hauv cov DNA code , qhov sib lawv liag ntawm cov hauv paus cais yooj yim li purines lossis pyrimidines tuaj yeem nkag mus rau cov pab pawg me ntawm cov amino acids.
Pom zoo:
Cov anemones muaj cov yam ntxwv dab tsi uas tso cai rau lawv tawm tsam ib leeg?
Hom: A. elegantissima
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Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom