2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Vim li ntawd, thaum ib yam khoom nqus tau lub zog txaus ces nws cov atoms lossis molecules txav mus ncig. Thiab, thaum nce hauv lub zog no tshwm sim ces atoms yuav sib tsoo ntau zaus nrog ib leeg. Li no, nws ua rau kev hloov hauv lub xeev ntawm ib yam khoom. Yog li ntawd, kev hloov pauv ntawm cov teeb meem tseem ceeb rau kev txuag hluav taws xob.
Qhov teeb meem yog vim li cas thiaj tseem ceeb?
Txhua yam yog tsim los ntawm Matter. Txawm hais tias nws muaj sia lossis tsis muaj sia. Teeb meem tseem ceeb vim nws tsim txhua yam nyob ib puag ncig peb thiab qhov teeb meem tsis tuaj yeem tsim lossis rhuav tshem tab sis hloov pauv, lawv tsuas yog hloov pauv mus rau lwm daim ntawv.
Qhov txiaj ntsig ntawm kev hloov pauv hauv qhov teeb meem yog dab tsi?
Qhov kom zoo dua ntawm kev hloov pauv hauv qhov teeb meem yog tias lawv tuaj yeem ua kom muaj txiaj ntsig ntawm qhov teeb meem kom ua haujlwm tau zoo dua. Txawm li cas los xij, nws tuaj yeem txo qhov tsim tau ntawm qhov teeb meem thaum pib.
Vim li cas kev hloov ntawm lub xeev tseem ceeb hauv peb lub neej txhua hnub?
tsis muaj oxygen uas yog roj peb tawm tsis tau vim nws pab ua pa ua pa thiab lwm yam khoom noj khoom haus thiab peb tsis tuaj yeem ua neej tsis muaj zaub mov vim peb xav tau dej kom muaj zog ua haujlwm tag nrho hnub thiab khoom noj peb lub zog ua haujlwm.
Vim li cas thiaj tseem ceeb kom nkag siab txog ntau txoj hauv kev los hloov qhov teeb meem?
tshuaj tiv thaiv pab peb nkag siab txog cov khoom ntawm cov teeb meem. Los ntawm kev kawm txog kev ua piv txwv cuam tshuam nrog lwm yam teeb meem, peb tuaj yeem ua taukawm nws cov khoom siv tshuaj. Cov khoom no tuaj yeem siv los txheeb xyuas cov qauv tsis paub lossis kwv yees seb cov teeb meem sib txawv yuav ua li cas rau ib leeg.
Pom zoo:
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).
Dab tsi yog qhov tseem ceeb thiab vim li cas nws tseem ceeb los txheeb xyuas koj qhov tseem ceeb?
Qhov tseem ceeb yuav coj koj hauv kev txiav txim siab hauv lub neej thiab ua rau koj taug qab. Qhov tseem ceeb tshaj plaws, qhov tseem ceeb tshaj plaws yuav ua rau koj ntseeg siab hais tias "tsis yog." Lawv pab koj txheeb xyuas qhov xav tau tiag tiag hauv koj lub neej, piv rau lwm tus xav tias tseem ceeb.
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.
