Cov piam thaj hauv RNA txawv li cas ntawm cov piam thaj hauv DNA?
Cov piam thaj hauv RNA txawv li cas ntawm cov piam thaj hauv DNA?

Video: Cov piam thaj hauv RNA txawv li cas ntawm cov piam thaj hauv DNA?

Video: Cov piam thaj hauv RNA txawv li cas ntawm cov piam thaj hauv DNA?
Video: ИИСУС ► Русский (ru) 🎬 JESUS (Russian) (HD)(CC) 2024, Kaum ib hlis
Anonim

DNA muaj cov qab zib deoxyribose, thaum RNA muaj cov qab zib ribose. Lub xwb txawv nruab nrab ntawm ribose thiab deoxyribose yog tias ribose muaj ib pawg -OH ntau dua li deoxyribose, uas muaj -H txuas rau qhov thib ob (2') carbon nyob rau hauv lub nplhaib. DNA yog ob-stranded molecule, thaum RNA yog ib leeg-stranded molecule.

Ua kom pom qhov no, qhov txawv ntawm ribose qab zib thiab deoxyribose qab zib yog dab tsi?

Ribose , pom hauv RNA, yog "ib txwm" qab zib , nrog rau ib qho oxygen atom txuas rau txhua cov pa roj carbon atom. Deoxyribose , pom hauv DNA, yog hloov kho qab zib , tsis muaj oxygen atom (li no lub npe "deoxy"). Daim ntawv ceeb toom qhov sib txawv ntawm ribose thiab deoxyribose hauv cov ntshav daim duab saum toj no.

Tsis tas li ntawd, RNA muaj piam thaj dab tsi? ribose

Tsis tas li ntawd, lub luag haujlwm ntawm cov piam thaj hauv DNA thiab RNA qauv yog dab tsi?

Vim nws deoxyribose qab zib , uas muaj ib pab pawg muaj oxygen tsawg dua hydroxyl, DNA yog ib qho molecule ruaj khov dua RNA , uas muaj txiaj ntsig zoo rau cov molecule uas muaj lub luag haujlwm ntawm kev khaws cov ntaub ntawv genetic kev nyab xeeb. RNA , muaj ribose qab zib , yog ntau reactive tshaj DNA thiab tsis ruaj khov nyob rau hauv alkaline tej yam kev mob.

Dab tsi yog 4 qhov sib txawv tseem ceeb ntawm DNA thiab RNA?

DNA yog ib tug ntev polymer nrog deoxyriboses thiab phosphate qaum. Muaj plaub sib txawv nitrogenous hauv paus: adenine, guanine, cytosine thiab thymine. RNA yog ib tug polymer nrog ib tug ribose thiab phosphate qaum. Plaub sib txawv nitrogenous bases: adenine, guanine, cytosine, thiab uracil.

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