DNA thiab RNA txawv li cas?
DNA thiab RNA txawv li cas?

Video: DNA thiab RNA txawv li cas?

Video: DNA thiab RNA txawv li cas?
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DNA yog ob-stranded molecule, thaum RNA yog ib leeg-stranded molecule. DNA yog ruaj khov nyob rau hauv alkaline tej yam kev mob, thaum RNA tsis ruaj khov. DNA thiab RNA base pairing yog me ntsis txawv txij li thaum DNA siv lub hauv paus adenine, thymine, cytosine, thiab guanine; RNA siv adenine, uracil, cytosine, thiab guanine.

Hais txog qhov no, 4 qhov sib txawv tseem ceeb ntawm DNA thiab RNA yog dab tsi?

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.

Tom qab ntawd, lo lus nug yog, qhov txawv ntawm DNA thiab RNA quizlet yog dab tsi? Zoo li DNA , RNA yog tsim los ntawm 5-carbon surgar, ib pawg phosphate, thiab nitrogenous puag. RNA yog txawv los ntawm DNA yog peb txoj kev: (1) qab zib 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.

Raws li txoj cai, peb qhov sib txawv ntawm DNA thiab RNA yog dab tsi?

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 cov nitrogenous hauv paus yog tib yam hauv ob hom (adenine, cytosine, thiab guanine), tab sis DNA muaj thymine thaum RNA muaj uracil.

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.

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