DNA deoxyribonucleic acid encode cov ntaub ntawv li cas?
DNA deoxyribonucleic acid encode cov ntaub ntawv li cas?

Video: DNA deoxyribonucleic acid encode cov ntaub ntawv li cas?

Video: DNA deoxyribonucleic acid encode cov ntaub ntawv li cas?
Video: From DNA to protein - 3D 2024, Kaum ib hlis
Anonim

A) Cov proteins raws qhov ntev ntawm DNA molecules encode tus cov ntaub ntawv rau tsim tag nrho cov cell lwm molecules. Cov DNA molecule yog tsim los ntawm ntau cov amino kua qaub koom ua ke los tsim cov protein ua haujlwm. C) Nyob rau hauv tus naj npawb ntawm txhua qhov sib txawv nucleotide.

Ib yam li ntawd, DNA khaws cov ntaub ntawv li cas?

DNA khw lom cov ntaub ntawv Nyob rau hauv sequences ntawm plaub lub hauv paus ntawm nucleic acid - adenine (A), thymine (T), cytosine (C) thiab guanine (G) - uas yog strung raws ribbons ntawm qab zib - phosphate molecules nyob rau hauv cov duab ntawm ob helix. Noj tag nrho, no pob ntawm DNA ua hauj lwm raws li nws tus tswv daim ntawv qhia txog caj ces.

Tsis tas li ntawd, cov ntaub ntawv DNA siv los ua cov protein li cas? Ua ntej, enzymes nyeem cov cov ntaub ntawv hauv a DNA molecule thiab transcript nws mus rau hauv ib tug intermediary molecule hu ua messenger ribonucleic acid, los yog mRNA. Tom ntej no, lub cov ntaub ntawv muaj nyob rau hauv mRNA molecule yog txhais ua "lus" ntawm amino acids, uas yog lub tsev blocks ntawm cov proteins.

Yog li, dab tsi yog qhov sib ntxiv ntawm DNA?

Hauv biology, tshwj xeeb hauv cov ntsiab lus ntawm noob caj noob ces thiab DNA , ntxiv txhais tau tias polynucleotide txoj hlua ua ke nrog tus thib ob polynucleotide txoj hlua muaj nitrogenous puag ib theem zuj zus uas yog rov qab ntxiv , los yog khub, ntawm lwm tus txoj hlua.

Vim li cas DNA yog acid?

Lub acidity ntawm DNA yog tshwm sim los ntawm muaj cov phosphate pawg uas yog lawv tus kheej acidic . Ua ntej tshaj plaws, DNA Tsis yog tsim los ntawm "nucleotide bases" tab sis ntawm nucleotides. Cov no suav nrog cov piam thaj uas khi rau ib qho ntawm 4 nucleobases Adenine, Cytosine, Guanine lossis Thymine (Uracil hauv RNA) thiab pab pawg phosphate.

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