Video: Dab tsi yog peb qhov sib txawv ntawm DNA thiab RNA?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
DNA yog ob-stranded, thaum RNA yog ib leeg-stranded. RNA muaj ribose li qab zib, thaum DNA muaj deoxyribose. Tsis tas li ntawd, peb ntawm nitrogenous bases yog tib yam hauv ob hom (adenine, cytosine, thiab guanine), tab sis DNA muaj thymine thaum RNA muaj uracil.
Xav txog qhov no, dab tsi yog qhov txawv ntawm DNA thiab RNA?
DNA yog ib tug ntev polymer nrog deoxyriboses thiab phosphate qaum. Muaj plaub lub hauv paus nitrogenous sib txawv: adenine, guanine, cytosine thiab thymine. RNA yog ib tug polymer nrog ib tug ribose thiab phosphate qaum. Plaub lub hauv paus nitrogenous sib txawv: adenine, guanine, cytosine, thiab uracil.
Tsis tas li ntawd, cov qauv zoo sib xws ntawm DNA thiab RNA yog dab tsi? Zoo sib xws : Ob leeg yog tsib-carbon pentose qab zib uas tsim nucleotides nrog puag thiab phosphate (qab zib + puag + phosphate = nucleotides). Bases: Cov DNA yog tsim los ntawm adenine, guanine, cytosine thiab thymine thaum lub RNA yog ua ntawm adenine, guanine, cytosine thiab uracil.
Yog li ntawd, peb qhov sib txawv loj ntawm DNA thiab RNA quizlet yog dab tsi?
RNA yog txawv los ntawm DNA yog peb txoj kev: (1) cov suab thaj hauv RNA yog ribose tsis dioxyribose; (2) RNA feem ntau yog ib leeg-stranded thiab tsis yog ob-stranded; thiab (3) RNA muaj uracil nyob rau hauv qhov chaw ntawm thymine.
Dab tsi yog 5 qhov sib txawv ntawm DNA thiab RNA?
DNA muaj cov suab thaj deoxyribose, thaum RNA muaj cov piam thaj ribose. DNA thiab RNA base pairing yog txawv me ntsis txij li thaum DNA siv lub hauv paus adenine, thymine, cytosine, thiab guanine; RNA siv adenine, uracil, cytosine, thiab guanine. Uracil txawv ntawm thymine vim tias nws tsis muaj methyl pawg ntawm nws lub nplhaib.
Pom zoo:
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