2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Txij li xyoo 1985, tau muaj ntau qhov kev sim hloov lossis tshem tawm qhov kev hloov pauv no. Qhov no tau pib thaum Ronald Reagan tau ua nws lub sijhawm thib ob ua Thawj Tswj Hwm. Txij thaum ntawd los, kev hloov pauv tau raug sim los ntawm Democrats thiab Republicans. Tsis tau hloov pauv.
Kev hloov pauv yuav hloov pauv li cas?
Cov Kev Hloov Kho puas tuaj yeem thim rov qab? Txhua yam kev hloov kho uas twb muaj lawm tuaj yeem raug tshem tawm tab sis tsuas yog los ntawm kev pom zoo ntawm lwm qhov kev hloov kho. Vim hais tias kev tshem tawm cov kev hloov pauv yuav tsum tau thov thiab pom zoo los ntawm ib qho ntawm ob txoj kev hloov kho tsis tu ncua, lawv tsawg heev.
Puas yog txhaum cai hloov pauv?
Tab sis tus thawj tswj hwm tsis tuaj yeem tshem tawm ib feem ntawm Txoj Cai Lij Choj los ntawm kev tswj hwm. Thiab Congress tsis tuaj yeem thim nws los ntawm tsuas yog hla daim nqi tshiab. Kev hloov kho Txoj Cai Lij Choj yuav xav tau kev pov npav ob feem peb hauv tsev thiab Senate, thiab kuj tau pom zoo los ntawm peb feem peb ntawm lub xeev.
Puas yog kev hloov kho nees nkaum thib ob yog qhov yuam kev?
Qhov kev hloov kho tau dhau los ntawm kev pov npav ntawm 59 rau 23 thaum Lub Peb Hlis 12, 1947. Cov Democrats yws tias qhov kev hloov kho tsuas yog kev sim ua kom tsis hwm lub cim xeeb ntawm Democratic tus thawj tswj hwm, tab sis Lub Tsev tau xa cov kev hloov kho rau cov xeev kom pom zoo rau lub Peb Hlis 21, 1947.
Txoj kev hloov kho thib 22 txwv tus thawj tswj hwm lub hwj chim li cas?
Kev hloov kho txwv tsis pub leej twg tau raug xaiv tsa tus thawj tswj hwmob zaug los ntawm kev xaiv dua. Raws li kev hloov kho, ib tus neeg uas ua tiav tus thawj tswj hwm uas tsis tas yuav kav ntev tshaj li ob xyoos kuj raug txwv tsis pub xaiv tus thawj tswj hwm ntau dua ib zaug.
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).
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.
Nees nkaum nees nkaum lub zeem muag txhais li cas?
20/20 kev pom kev yog ib lo lus siv los qhia qhov pom kev pom ib txwm muaj (qhov pom tseeb lossis qhov pom tseeb ntawm qhov muag) ntsuas ntawm qhov deb ntawm 20 ko taw. Yog tias koj muaj 20/20 lub zeem muag, koj tuaj yeem pom meej ntawm 20 ko taw dab tsi yuav tsum tau pom nyob deb li ntawd.
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.
