Video: Lub ntsiab txhais ntawm cloning yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cloning , tus txheej txheem ntawm kev tsim cov genetic zoo tib yam luam ntawm ib tug cell los yog ib tug kab mob. Cloning tshwm sim feem ntau nyob rau hauv xwm-piv txwv li, thaum ib tug cell replicates nws tus kheej asexually yam tsis muaj genetic hloov los yog recombination.
Ntawm no, dab tsi yog cloning thiab nws hom?
Muaj peb yam sib txawv hom ntawm dag cloning : gene cloning , kev yug me nyuam cloning thiab kho cloning . Gene cloning tsim cov ntawv luam ntawm cov noob lossis ntu ntawm DNA. Kev kho mob cloning tsim cov embryonic qia hlwb rau kev sim tsim cov ntaub so ntswg los hloov cov ntaub so ntswg raug mob los yog kab mob.
Tsis tas li ntawd, cloning siv rau dab tsi? Cloning Siv. Kev kho mob cloning yog tus txheej txheem uas tus neeg lub DNA yog siv rau loj hlob embryonic clone . Txawm li cas los xij, es tsis txhob tso lub embryo no rau hauv niam txiv, nws cov hlwb yog siv rau loj hlob qia hlwb.
Tsis tas li ntawd, qhov txheej txheem cloning yog dab tsi?
Cloning hais txog cov txheej txheem ntawm kev tsim lub embryo nrog DNA los ntawm tus tsiaj laus. Lub embryo tsim tshiab yog ces zapped nrog hluav taws xob kom nws pib multiply, kom txog rau thaum nws dhau los ua blastocyst (ib pawg me me ntawm cov hlwb uas tsim tom qab lub qe yog fertilized), uas yog ces cog rau hauv ib tug surrogate niam.
Vim li cas gene cloning tseem ceeb?
Cloning noob tuaj yeem pab kho thiab kho caj ces Cov kab mob xws li cystic fibrosis thiab mob hnyav ua ke tiv thaiv kab mob (SCID). Thawj theem ntawm cloning a noob yog tsim kom muaj ib qho DNA seem uas muaj cov noob ntawm kev txaus siab yuav cloned.
Pom zoo:
Lub ntsiab txhais twg yog Bronsted Lowry txhais ntawm lub hauv paus?
Bronsted-Lowry acid yog ib hom tshuaj uas pub ib los yog ntau dua hydrogen ions hauv cov tshuaj tiv thaiv. Hauv qhov sib piv, Bronsted-Lowry puag txais hydrogen ions. Thaum nws pub nws cov proton, cov kua qaub ua nws lub hauv paus conjugate. Ib qho kev saib ntau dua ntawm txoj kev xav yog cov kua qaub ua tus neeg pub khoom noj proton thiab lub hauv paus ua tus txais proton
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Microevolution, los yog evolution ntawm ib tug me me, yog txhais raws li ib tug kev hloov nyob rau hauv lub zaus ntawm noob variants, alleles, nyob rau hauv ib tug pej xeem ntau tiam. Lub teb ntawm biology uas kawm txog allele frequencies nyob rau hauv cov pejxeem thiab yuav ua li cas lawv hloov lub sij hawm yog hu ua pej xeem noob caj noob ces
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
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Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
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Lub npe ntawm tag nrho cov ntsiab lus ntawm lub sij hawm lub rooj yog dab tsi?
Tus lej xov tooj yog nws tus lej atomic, uas yog tus naj npawb ntawm protons hauv txhua qhov ntawm nws cov atoms. H - Hydrogen. Nws - Helium. Lithium roj teeb. Ua - Beryllium. B - Boron. C - Cov pa roj carbon. N - Nitrogen. O - Cov pa