Video: Vim li cas adenine ua ke nrog thymine?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Adenine thiab Thymine Kuj tseem muaj qhov kev teeb tsa zoo rau lawv cov ntawv cog lus. Lawv ob leeg yuav tsum muaj -OH/-NH pawg uas tuaj yeem tsim cov txuas hniav hydrogen. Thaum ib khub Adenine Nrog Cytosine, ntau pawg yog nyob rau hauv txhua txoj kev. Rau lawv txoj kev sib raug zoo nrog ib leeg yuav yog qhov tsis zoo.
Ib yam li ib tug yuav nug, vim li cas adenine ib txwm ua ke nrog thymine?
Qhov no yog vim qhov Adenine (purine puag) khub tsuas yog nrog cov Thymine (pyrimidine puag) thiab tsis nrog Cytosine (purine puag). Lub hauv paus ua khub ua raws li Erwin Chargaff cov cai. Nws yog lub hauv paus ntsiab lus ntawm noob caj noob ces ntawm molecular biology uas peb txhua tus kawm. Qhov ntawd yog Adenine daim ntawv cog lus nrog thymine thiab guanine nrog cytosine.
Tsis tas li ntawd, vim li cas thiaj yuav tsum tau ib khub purine nrog pyrimidine? Kev piav qhia: Ua khub ntawm ib qho tshwj xeeb tshuaj purine rau a pyrimidine yog vim cov qauv thiab cov khoom ntawm cov hauv paus. Sib piv puag khub ( cov purines thiab pyrimidines ua ) tsim hydrogen bonds. A thiab T muaj ob qhov chaw uas lawv tsim hydrogen bonds rau ib leeg.
Ntxiv rau qhov no, vim li cas thiaj li muaj kev sib koom ua ke hauv paus?
Complementary Base Pairing Koj pom, cytosine ua tau tsim peb hydrogen bonds nrog guanine, thiab adenine ua tau tsim ob daim ntawv cog lus hydrogen nrog thymine. Los yog, yooj yim dua, C daim ntawv cog lus nrog G thiab A daim ntawv cog lus nrog T. Nws yog hu ua complementary puag khub vim cwb puag tau tsuas yog daim ntawv cog lus nrog ib qho tshwj xeeb puag tus khub.
Adenine ua ke nrog dab tsi?
Cov hauv paus yog cov "cov tsiaj ntawv" uas sau tawm cov cai ntawm caj ces. Hauv DNA, cov ntawv cim yog A, T, G, thiab C, uas sawv cev rau cov tshuaj adenine, thymine , guanine , thiab cytosine , raws. Hauv DNA puag khub, adenine ib txwm ua nrog thymine , thiab guanine ib txwm ua khub nrog cytosine.
Pom zoo:
Vim li cas purines sib cog lus nrog pyrimidines?
Cov nucleotides no muaj kev sib txuas ntxiv - lawv lub ntsej muag ua rau lawv sib txuas ua ke nrog hydrogen bonds. Hauv C-Gpair, purine (guanine) muaj peb qhov chaw sib txuas, thiab sodoes pyrimidine (cytosine). Lub hydrogenbonding ntawm cov hauv paus ntxiv yog dab tsi tuav ob txoj hauv kev ntawm DNA ua ke
Qhov twg RNA puag sib txuas nrog thymine?
Hauv RNA, uracil puag-pairs nrog adenine thiab hloov thymine thaum lub sijhawm DNA transcription. Methylation ntawm uracil tsim thymine
Yuav ua li cas yog vim li cas vim li cas lub epigenome hloov?
Kev ua neej nyob thiab ib puag ncig (xws li kev haus luam yeeb, noj zaub mov thiab kab mob sib kis) tuaj yeem ua rau tus neeg muaj kev ntxhov siab uas ua rau muaj tshuaj lom neeg. Cov lus teb no, dhau los, feem ntau ua rau muaj kev hloov pauv hauv epigenome, qee qhov tuaj yeem ua rau puas tsuaj
Vim li cas adenine ua khub nrog thymine thiab tsis cytosine?
Raws li pom nyob rau hauv daim duab, ob hydrogen bonds yog tsim ntawm Adenine thiab Thymine, peb hydrogen bonds yog tsim ntawm cytosine thiab guanine. Qhov no yog vim Adenine (purine puag) ua khub tsuas yog nrog Thymine (pyrimidine puag) thiab tsis nrog Cytosine (purine puag)
Puas muaj peev xwm hluav taws xob thiab lub zog muaj peev xwm tib yam Vim li cas lossis vim li cas ho tsis?
Lub zog muaj peev xwm hluav taws xob Ue yog lub zog muaj peev xwm khaws cia thaum cov nqi tawm ntawm qhov sib npaug (xws li lub zog muaj peev xwm gravitational). Lub peev xwm hluav taws xob zoo ib yam, tab sis ib tus nqi, Ueq. Ib qho hluav taws xob muaj peev xwm sib txawv ntawm ob lub ntsiab lus hu ua voltage, V = Ue2q−Ue1q