Video: DNA thiab RNA piv txwv ntawm dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ob piv txwv ntawm nucleic acids suav nrog deoxyribonucleic acid (zoo dua hu ua DNA ) thiab ribonucleic acid (zoo dua lub npe hu ua RNA ). Cov molecules no yog tsim los ntawm ntev strands ntawm nucleotides tuav ua ke los ntawm covalent bonds. Nucleic acids tuaj yeem pom nyob rau hauv lub nucleus thiab cytoplasm ntawm peb cov hlwb.
Ib yam li ib tug yuav nug, RNA piv txwv li cas?
Luv luv rau ribonucleic acid. Cov nucleic acid uas siv rau hauv cov txheej txheem metabolic tseem ceeb rau txhua kauj ruam ntawm kev tsim cov protein nyob hauv txhua lub hlwb thiab nqa cov ntaub ntawv caj ces ntawm ntau tus kab mob. Tsis zoo li ob-stranded DNA, RNA muaj ib txoj hlua ntawm nucleotides, thiab nws tshwm sim hauv ntau qhov ntev thiab cov duab.
Tom qab ntawd, lo lus nug yog, dab tsi DNA thiab RNA muaj sib xws? Ob leeg DNA thiab RNA muaj plaub lub hauv paus nitrogenous txhua-peb ntawm lawv sib koom (Cytosine, Adenine, thiab Guanine) thiab ib qho sib txawv ntawm ob ( RNA muaj Uracil thaum DNA muaj Thymine). Ib qho tseem ceeb tshaj plaws zoo sib xws ntawm DNA thiab RNA yog lawv ob leeg muaj ib lub pob txha phosphate uas cov hauv paus txuas.
Ua li no, piv txwv li DNA yog dab tsi?
dna ua - Kev Kho Mob Txhais Lus A nucleic acid uas nqa cov ntaub ntawv caj ces hauv cov hlwb thiab qee cov kab mob, muaj ob txoj hlua ntev ntawm nucleotides twisted rau hauv ob lub helix thiab koom nrog hydrogen bonds ntawm lub hauv paus ntxiv adenine thiab thymine lossis cytosine thiab guanine.
DNA vs RNA yog dab tsi?
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.
Pom zoo:
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