Video: Vim li cas purine thiab pyrimidine ib txwm ua ke ua ke?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov nucleotides no yog complementary-lawv lub cev tso cai rau lawv sib raug zoo ua ke nrog hydrogenbonds. Hauv C-G khub , cov tshuaj purine (guanine) muaj threebindingsites, thiab lwm yam ua tus pyrimidine (cytosine). Thehydrogen bonding ntawm complementary bases yog dab tsi yog ob kab ntawm DNA ua ke.
Ua li no, vim li cas purine ib txwm ua ke nrog pyrimidine?
Cov qauv molecular ntawm ob qho tib si pyrimidines ua thiab cov purines cia lawv tsuas muaj peev xwm sib raug zoo nrog ib leeg thiab tsis nyob hauv pab pawg. Thymine ( pyrimidine )andenine ( tshuaj purine ) ob leeg muaj ob lub atom uas tuaj yeem muab Hbond lossis tau txais nws. Cytosine (pyr.) thiab guanine (pur.) canstablishthree H bonds.
Ib yam li ntawd, purine thiab pyrimidine yog dab tsi? Adenine thiab guanine belongs rau ib chav kawm ntawm compoundscalled cov purines , thaum lub sij hawm cytosine, thymine thiab uracil aretermed pyrimidines ua . Lub hauv paus ntawm a tshuaj purine yog ob npaug-ringconstruct, ib lub nplhaib muaj tsib atoms thiab ib tug muaj rau, whereas lub me-molecular-yuag pyrimidines ua muaj asingle-ring structure.
Ib sab saum toj no, vim li cas purines khi nrog pyrimidines hauv DNA?
Purines (adenine thiab guanine) muaj ob lub nplhaib carbonnitrogen. kuv xav tias purines daim ntawv cog lus nrog pyrimidines hauv DNA ntaiv vim adenine moleculesonly pairthymine molecules thiab guanine molecules tsuas yog khub nrog cytosinemolecules. A thiab T daim ntawv cog lus nrog 2 hydrogen bonds, C thiab G daim ntawv cog lus nrog 3 hydrogen bonds.
purine ua ke nrog dab tsi?
Cov cai ntawm lub hauv paus ua khub (ornucleotide). ua khub ) yog : A nrog T: lub tshuaj purine adenine (A) ib txwm ua khub nrog cov pyrimidine thymine (T) Cwith G: thepyrimidine cytosine (C) ib txwm ua khub nrog tus tshuaj purine guanine (G)
Pom zoo:
Dab tsi yog qhov txawv ntawm purine thiab pyrimidine bases?
Cov purines hauv DNA yog adenine thiab guanine, tib yam li hauv RNA. Cov pyrimidines hauv DNA yog cytosine thiab thymine; Hauv RNA, lawv yog cytosine thiab uracil. Purines loj dua pyrimidines vim tias lawv muaj ob lub nplhaib qauv thaum pyrimidines tsuas muaj ib lub nplhaib
Vim li cas A thiab T thiab G thiab C ua khub hauv DNA ob lub helix?
Qhov no txhais tau hais tias txhua ntawm ob strandsindouble-stranded DNA ua raws li ib tug templatetoproduce ob strands tshiab. Replication relies oncomplementary basepairing, uas yog lub hauv paus ntsiab lus piav qhia los ntawmChargaff cov cai: adenine (A) ib txwm khi nrog thymine (T) thiab cytosine (C) ib txwm khi nrog guanine (G)
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 pyrimidine tsuas yog khi nrog purine?
Teb thiab piav qhia: Purines khub nrog pyrimidines vim tias lawv ob leeg muaj nitrogenous hauv paus uas txhais tau hais tias ob qho tib si molecules muaj cov qauv sib xyaw ua ke
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