Video: DNA molecule yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
DNA yog ua up ntawm molecules hu ua nucleotides. Txhua nucleotide muaj phosphate pawg, pawg suab thaj thiab nitrogen hauv paus. Plaub hom nitrogen hauv paus yog adenine (A), thymine (T), guanine (G) thiab cytosine (C). Qhov kev txiav txim ntawm cov hauv paus no yog qhov txiav txim siab DNA cov cov lus qhia, los yog genetic code.
Kuj paub, DNA tsim li cas?
DNA yog tsim los ntawm chemical tsev blocks hu ua nucleotides. Cov tsev thaiv no yog ua los ntawm peb qhov chaw: ib pawg phosphate, ib pawg suab thaj thiab ib qho ntawm plaub hom nitrogen hauv paus. Rau daim ntawv ib strand DNA , nucleotides txuas rau hauv cov saw hlau, nrog cov phosphate thiab qab zib pawg hloov pauv.
Tsis tas li ntawd, qhov piv txwv ntawm 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.
Tom qab ntawd, lo lus nug yog, dab tsi yog qhov haujlwm ntawm DNA?
Deoxyribonucleic acid ( DNA ) yog ib qho nucleic acid uas muaj cov lus qhia caj ces rau kev txhim kho thiab muaj nuj nqi ntawm tej yam muaj sia. Txhua tus paub cellular lub neej thiab qee cov kab mob muaj DNA . Lub ntsiab lub luag haujlwm ntawm DNA nyob rau hauv lub cell yog lub sij hawm ntev cia cov ntaub ntawv.
Hom DNA twg uas feem ntau pom hauv lub cell?
Nyob rau hauv tib neeg lub hlwb, feem ntau DNA yog pom nyob rau hauv ib tug compartment nyob rau hauv lub cell hu ua a nucleus . Nws yog lub npe hu ua nuclear DNA. Ntxiv nrog rau DNA DNA, me me ntawm DNA hauv tib neeg thiab lwm yam kab mob nyuaj kuj tuaj yeem pom hauv mitochondria. Cov DNA no hu ua mitochondrial DNA (mtDNA).
Pom zoo:
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Lub tsev thaiv dab tsi ua rau DNA molecule quizlet?
Lub hauv paus nitrogen tsuas yog ib qho nitrogen uas muaj cov molecule uas muaj cov tshuaj lom neeg zoo ib yam li lub hauv paus. Lawv yog cov tseem ceeb tshwj xeeb vim lawv tsim cov blocks ntawm DNA thiab RNA: adenine, guanine, cytosine, thymine thiab uracil