Qhov sib txawv tseem ceeb ntawm prokaryotic thiab eukaryotic DNA yog tias prokaryotic DNA dawb do ntab hauv cytoplasm thaum lub eukaryotic DNA nyob hauv lub nucleus.
Muaj ob pawg loj ntawm cov kab mob muaj sia xws li prokaryotes thiab eukaryotes. Lawv txawv ntawm ib leeg los ntawm lawv lub koom haum cellular. Raws li txoj cai, prokaryotes muaj lub koom haum yooj yim ntawm tes. Lawv tsis muaj nucleus thiab membrane-bound organelles. Ntawm qhov tod tes, eukaryotes muaj lub koom haum cellular complex. Lawv muaj qhov tseeb nucleus uas muaj DNA thiab tseem muaj cov cell organelles. Tag nrho cov prokaryotes yog unicellular thaum eukaryotes yuav yog unicellular lossis multicellular kab mob. Prokaryotes thiab eukaryotes feem ntau muaj DNA genomes. Lawv DNA tau ntim rau hauv chromosomes. Txij li thaum prokaryotes tsis muaj ib tug nucleus, lawv DNA dawb do ntab nyob rau hauv lub cytoplasm. Txawm li cas los xij, hauv eukaryotes, chromosomes nyob hauv lub nucleus. Yog li ntawd, cov ntaub so ntswg nuclear npog tag nrho cov eukaryotic DNA.
DNA Prokaryotic yog dab tsi?
Muaj ob pawg tseem ceeb ntawm prokaryotes xws li kab mob thiab archaea. Lawv yog cov kab mob unicellular me me. Ob pawg no muaj tib chromosome raws li lawv cov genome. Yog li, nws feem ntau yog DNA genome. Ib qho chromosome no yog ib lub voj voog chromosome ua los ntawm ob-stranded DNA.
Tsis tas li ntawd, nws ntab ntab hauv cov cell prokaryotic cytoplasm. Prokaryotic chromosome yog compact, thiab nws tsis muaj repetitive DNA thiab introns. Txawm hais tias prokaryotic DNA tau ntim rau hauv ib qho chromosome, DNA no tsis quav nrog histone proteins. Prokaryotic DNA coils nrog nucleoid-associated proteins.
Daim duab 01: Prokaryotic DNA
Ntxiv rau qhov chromosome no, prokaryotes muaj cov DNA ntxiv-chromosomal hu ua plasmids. Plasmids yog lub voj voog DNA me me. Lawv tsis muaj genomic DNA ntawm prokaryotes. Hloov chaw, lawv muaj cov noob uas muaj txiaj ntsig zoo rau cov kab mob ntawm tes. Plasmids yog ib qho tseem ceeb raws li cov vectors muaj txiaj ntsig hauv genetic engineering.
Eukaryotic DNA yog dab tsi?
Eukaryotes muaj qhov tseeb nucleus uas nyob nrog ib daim nyias nyias. Yog li ntawd, eukaryotic DNA nyob hauv lub nucleus los ntawm kev kaw cov ntaub so ntswg nuclear. Txawm li cas los xij, qee qhov tsis yog-genomic eukaryotic DNAs pom sab nraum lub nucleus, hauv ob hom cell organelles. Lawv yog chloroplasts thiab mitochondria. Tsis zoo li prokaryotic DNA, eukaryotic DNA muaj ntau qhov rov ua dua DNA uas tsis yog coding.
Daim duab 02: Eukaryotic DNA
Tsis tas li ntawd, eukaryotic DNA muaj introns uas tsis yog exons. Yog li ntawd, tus nqi ntawm eukaryotic DNA ntawm ib lub xov tooj ntawm tes yog siab heev piv rau tus nqi ntawm prokaryotic DNA. Tsis tas li ntawd xwb, eukaryotic DNA folds nrog histone proteins thiab pob khoom rau hauv ob peb chromosomes. Yog li, eukaryotes muaj ntau tshaj ib chromosome, tsis zoo li prokaryotes. Tib neeg genome muaj tag nrho ntawm 46 chromosomes. Feem ntau, eukaryotes tsis muaj plasmid DNA. Tab sis ob peb hom eukaryotes muaj plasmid DNA.
Dab tsi zoo sib xws ntawm Prokaryotic thiab Eukaryotic DNA?
- Prokaryotic thiab eukaryotic DNAs yog ob-stranded helical qauv.
- Ob leeg yog tsim los ntawm deoxyribonucleotides.
- Tsis tas li, ob qho tib si muaj plaub hom nitrogenous hauv paus (A, T, C thiab G).
- Tsis tas li ntawd, ob hom DNA muaj cov lej caj ces / cov ntaub ntawv rau kev sib txuas ntawm cov protein.
- Dhau li ntawd, ob hom DNA tuaj yeem hloov nws tus kheej.
Qhov txawv ntawm Prokaryotic thiab Eukaryotic DNA yog dab tsi?
Prokaryotic DNA muaj nyob rau hauv cytoplasm thaum lub eukaryotic DNA nyob rau hauv lub nucleus. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm prokaryotic thiab eukaryotic DNA. Tsis tas li ntawd, prokaryotes tsuas muaj ib chromosome xwb thaum eukaryotes muaj ntau dua ib chromosome.
Ntxiv mus, lwm qhov sib txawv ntawm prokaryotic thiab eukaryotic DNA yog tias prokaryotic DNA muaj tsawg dua cov noob dua li eukaryotic DNA. Tsis tas li ntawd, qhov sib txawv ntxiv ntawm prokaryotic thiab eukaryotic DNA yog tias prokaryotic DNA tsis muaj cov DNA rov ua dua thiab introns thaum eukaryotic DNA muaj ntau cov DNA rov ua dua thiab introns. Tsis tas li ntawd, tus nqi ntawm prokaryotic DNA yog me me piv rau tus nqi ntawm eukaryotic DNA. Yog li, nws kuj yog qhov sib txawv ntawm prokaryotic thiab eukaryotic DNA.
Cov duab hauv qab no nthuav tawm cov ntsiab lus ntxiv ntawm qhov sib txawv ntawm prokaryotic thiab eukaryotic DNA.
Summary – Prokaryotic vs Eukaryotic DNA
Prokaryotes thiab eukaryotes muaj DNA hauv lawv cov genomes. Prokaryotic DNA muaj nyob rau hauv lub cytoplasm vim lawv tsis muaj ib tug nucleus. Tab sis, eukaryotic DNA muaj nyob rau hauv lub nucleus vim lawv muaj ib tug tiag tiag nucleus. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm prokaryotic thiab eukaryotic DNA. Tsis tas li ntawd, prokaryotic DNA yog ntau compacted thiab tsis muaj repetitive DNA thiab introns. Ntawm qhov tod tes, eukaryotic DNA muaj ntau cov noob, rov ua dua DNA thiab introns. Thaum muab piv cov DNA, tus nqi eukaryotic DNA ntau dua li cov prokaryotic DNA. Ntxiv mus, prokaryotic DNA yog ob-stranded thiab ncig thaum eukaryotic DNA yog ob-stranded thiab linear. Yog li, qhov no qhia txog qhov sib txawv ntawm prokaryotic thiab eukaryotic DNA.
