Vim li cas purine thiab pyrimidine ib txwm ua ke ua ke?
Vim li cas purine thiab pyrimidine ib txwm ua ke ua ke?

Video: Vim li cas purine thiab pyrimidine ib txwm ua ke ua ke?

Video: Vim li cas purine thiab pyrimidine ib txwm ua ke ua ke?
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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)

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