2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Yog li ntawd, mis nyuj souring yog hu ua tshuaj hloov pauv lossis tshuaj hloov pauv vim tias nws xaus rau kev tsim cov khoom tshiab uas yog lactic acid, yog li tso cov kua mis qaub.
YPuas yog kua mis hloov pauv?
nws yog irreversible li cov kua mis qaub tsis tuaj yeem tig mus rau mis nyuj dua.
Puas yog cov kua mis hloov pauv lub cev?
Kev piav qhia: Yog li kev hloov tshuaj lom neeg xav tau kev hloov pauv ntawm qib molecular uas tsis tuaj yeem thim rov qab vim tias lawv tsim qee yam tshiab. Souring mis tsis yog ib yam uas koj yuav thim rov qab, thiab cov txheej txheem ntawm nws souring tsim tshiab molecules.
Puas yog mis nyuj?
Lub kua mis yog tshuaj tiv thaiv. Mis uas lwj yog qaub, nrog ib tug foul saj thiab tsw. Nws tuaj yeem ua pob thiab curdled.
Puas yog mis nyuj curdling tshuaj los yog lub cev hloov?
Peb tau pom nyob rau hauv tag nrho cov txheej txheem uas cov tshuaj tiv thaiv ntawm lactic acid thiab mis nyuj cuam tshuam kev sib cog lus thiab tsim cov ntawv cog lus tshiab. Yog li ntawd, muaj qhov tshuaj hloov pauv cuam tshuam nrog nws thiab yog li qhov kev hloov pauv no yog tshuaj hloov pauv. Li no, curdling mis nyuj yog ib qho tshuaj hloov.
Pom zoo:
Dab tsi yog qhov hloov pauv thiab hloov pauv hloov pauv?
Point mutations hloov ib leeg nucleotide. Frameshift kev hloov pauv yog ntxiv lossis tshem tawm ntawm nucleotides uas ua rau muaj kev hloov pauv hauv kev nyeem ntawv. frameshift thiab point mutation yog dab tsi? Ib qho kev hloov pauv cuam tshuam rau ib khub hauv paus.
Qhov kev hloov pauv no puas yuav ua rau muaj kev hloov pauv hloov pauv?
Yog li, yog tias muaj kev hloov pauv, piv txwv li, kev ntxig lossis tshem tawm ntawm nucleotide, tshwm sim, qhov no tuaj yeem ua rau kev hloov pauv ntawm kev nyeem ntawv. Nws hloov tag nrho cov amino acid ib ntus. Cov kev hloov pauv no yog hu ua frameshift mutation (tseem hu ua kev nyeem ntawv hloov pauv, nyeem ntawv hloov pauv, lossis framing yuam kev).
Qhov twg yog qhov kev hloov pauv hloov pauv hloov pauv?
Semiconservative replication piav qhia txog cov txheej txheem ntawm DNA replication nyob rau hauv tag nrho cov paub hlwb. DNA replication tshwm sim ntawm ntau lub hauv paus pib ntawm kev rov ua dua raws DNA qauv strand. Raws li DNA ob chav helix yog unwound by helicase, replication tshwm sim nyias ntawm txhua tus qauv strand nyob rau hauv antiparallel cov lus qhia.
Qhov kev hloov pauv twg yog xav tias yuav cuam tshuam los ntawm kev hloov pauv hloov pauv?
Dependent Variable Qhov sib txawv uas nyob ntawm lwm yam uas ntsuas. Cov kev hloov pauv no yuav tsum tau hloov pauv raws li qhov kev sim ua haujlwm ntawm tus kheej hloov pauv lossis hloov pauv. Nws yog cov nyhuv presumed. Qhov kev tshawb fawb hloov pauv twg yog qhov tshwm sim?
Los ntawm kev hloov pauv hloov pauv hloov pauv?
Kev hloov pauv hloov pauv hloov pauv (TMA) yog qhov isothermal (tsis hloov pauv nucleic acid kub), ib leeg-tube nucleic acid amplification system siv ob lub enzymes, RNA polymerase thiab thim rov qab kev sau ntawv. … Cov txheej txheem no tuaj yeem siv los tsom rau RNA thiab DNA.
