Code Trigeminal iyo unit functional of code genetic

kuwii ugu horreeyey ee caalamka this badan tahay in uu lahaado nolosha aad u yar. jihada Evolutionary oo dhan ku nool socday dhinaca nolosha ah u shaqeeyo ah dheereynaya loogu talaggalay guul u xaaladaha deegaanka, hababka horumarinta qabsashada iyo suurtagalnimada in la isugu gudbiyo oo waayo-aragnimo ka ab ka xiga. Abuur taagoo organic sida qorshaha uu ogol yahay nolosha on Earth inay soo galaan oo ay bilaabaan in ay horumar guul. hab ay of kaydinta furta iyo gudbinta macluumaad hidde beddelaa nidaam koodh hidde, halkaas oo qayb ka ugu weyn ee - a unit functional of code hidaha.

waxaydin dhexe ee biology kelli

Hiddo - waa qayb ugu weyn ee sii socodka noolaha ee nolosha. Nature uu abuuray nidaam gudbinta iyo dhalmo of macluumaad hidde by habaynteeda borotiinada ee silsiladda ka kooban acids nucleic. Hawlaha acids nucleic (DNA iyo RNA) - macluumaadka lagu kaydiyo iyo wareejiso qaab-dhismeedka borotiinada ah. Iyo borotiinada by reactions dheefshiidka qaadeen hadal phenotypic xogta this. code hidaha - furta toosan kaydinta macluumaadka ku saabsan qaab dhismeedka protein ah by diiwaan ilmood ee nucleotides ay silsiladda acid nucleic. unit ugu yar functional of code genetic ay ku jiraan macluumaad ku saabsan qaybta ugu yar ee dhismaha borotiinada - triplet ah nucleotides in DNA ama RNA silsiladda. macluumaadka la isku qaadsiiyo ka DNA si mRNA iyo mRNA ka RNA iyo protein taagoo kale.

nidaamka koodh Universal

On fahamka ee code hidaha ee sayniska ku qaatay qarni ah, iyo ballaarinta - kaliya muddo toban sano ah. Tan iyo markii hordhaca ah ee fikirka ah qaab-dhismeedka DNA galool labanlaab (1953, Watson oo Crick) yimaadaan si ay u fahmaan iyada doorka sida wax la kala dhaxlo, oo waxay bilaabeen raadinta xarfaha alifbeetada, kuwaas oo la diiwaan geliyey ay macluumaad. fikradda ah in unugga hawlaha gaarka ah ee code hidaha, mid nucleotide mar way taagnaan kari waayeen dhaleeceyn. Afar nucleotide kaabaha ah (adein, gu'anayn, saytosayn iyo thaymiin) DNA encode yaabaa borotiinada 21 acids amino. Xisaabyahannada, physicists iyo bayoolajiga waxaa si firfircoon uga qayb raadinta nidaamka habaynteeda ah oo si deg deg lagu ogaaday in hal acid amino a sireed xigxiga saddex nucleotides. Sayidka, unugga hawlaha gaarka ah ee code genetic - waa triplet a of nucleotides, mas'uul ka ah ereygu wuxuu ahaa ee a acid amino protein. Ilmood (codons) 64, kuwaas oo 61 - this codons dareen (habaynteeda amino acid), iyo 3 haray - tarayn. Iyagu ma ay qaadaan macluumaadka ku saabsan acid amino ah, iyo u dhaqmaan sida stop ah codon bilaabin ama dhamaystirka ereygu wuxuu ahaa ee Britain protein ah.

Triplet - unug functional of code genetic

Biopolymer Britain acid nucleic ka kooban yahay monomers - nucleotides. Kuwa, markeeda, abuuro DNA ah oo joogto ah kaas oo macluumaad habka qoraal ah loo kala qaado si mRNA si waafaqsan jir akhriyey, halkaas oo qiimaha ugu yar code ayaa triplet ah nucleotides - t. jir reading unidirectionally guuro, oo uu leeyahay a code genetic cad oo degeneracy ee unambiguity (shaqo la'aan).

Pointedness iyo kelinimada

macluumaad Triplet waa dirayaan, i.e. ratio of 1 t -1 amino acid ma aha variably. Amino acid la encoded karo iyo dhawr ilmood, laakiin triplet gaarka ah - acid ah amino gaar ah. jir akhriska waxaa had iyo jeer si toos ah oo isku jiho ah, oo tanuna waa ay sabab u tahay jiritaanka ilmood, bilaabaya akhriska iyo dhamaystirana. Tani waxay ku hayaa xasiloonida ee qaab-dhismeedka protein ah. hanti kale oo saddex ah - disjointness. Taas macnaheedu waa in nucleotide ay daruuri tahay waa qayb ka mid ah saddex ka, laakiin kaliya hal.

eryis The dabiiciga ah

degeneracy The oo ka mid ah (shaqo) ee xeerka hidaha - taasi waa margin ammaanka shaqeeyo ah a. Waxa uu ka ilaaliyaa unugyada ka dhanka ah saamaynta waxyeello ah Isbedelo. unit kasta functional of code genetic mari laga yaabaa bedelay 1, 2 iyo 3 nucleotides in triplet ah. Sayidka, 9 of bedelay booska kasta bedelay nucleotide triplet kasta 4-1 = 3 muuqashadii suurto gal ah, iyo iyada oo sababtu tahay aan u hesho 61 9 = 549 Lahjadaha badalaa nucleotides in triplet ah. Tani waa ka sii badan intii loo baahan yahay in encode 21 acids amino. pereizbytochnost ama degeneracy, oo la siiyo jiritaanka noolaha nolosha iyo hoos si ay ugu yaraan khaladaad markii reading macluumaadka hidaha.

Codon ama triplet ah?

In suugaanta, triplet ah nucleotides, sida conglomerate a functional yeedhay triplet ama codon. Waa maxay farqiga iyo waxa in? Ereyga "codon" waxaa loo isticmaalaa in geedi socodka tooska ah ee turjumaad - warbixin ka RNA gudbaayo Britain protein ah. Ereyga "triplet" waxaa loo isticmaalaa in macnaha ballaaran oo semantic, marka macluumaadka jir reading labada RNA iyo DNA.