2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Industrialism hloov lub neej vim ntau tus neeg pib tsiv mus rau hauv nroog, uas ua rau cov pej xeem hauv nroog nce ntxiv thiab ua rau muaj vaj tsev tsis txaus thiab huv. … Kev lag luam kev lag luam tau hloov cov tsev neeg ua hauj lwm los ntawm kev ua kom cov tsev neeg tsiv mus nyob rau hauv lub nroog rau cov hauj lwm zoo li cov neeg ua hauj lwm hauv Hoobkas.
kev lag luam cuam tshuam rau tib neeg li cas?
Kev Hloov Kho Kev Lag Luam ua kom nrawm nroog lossis kev txav ntawm tib neeg mus rau lub nroog. Kev hloov pauv hauv kev ua liaj ua teb, kev loj hlob ntawm cov pej xeem, thiab kev xav tau ntau ntxiv rau cov neeg ua haujlwm ua rau cov neeg coob coob tsiv teb tsaws chaw mus rau hauv nroog. Yuav luag tag hmo, cov nroog me nyob ib ncig ntawm cov thee lossis hlau mines nce mus rau hauv nroog.
kev lag luam hloov pauv neeg Asmeskas li cas?
Industrialization tau ua lub luag haujlwm zoo hauv kev tsim lub neej Asmeskas. Nws tau hu ua "Gilded Age" los ntawm 1869-1901. Muaj kev hloov pauv kev noj qab haus huv thiab kev lag luam. Ib qho kev hloov pauv loj yog kev tsim kho ntawm txoj kev tsheb ciav hlau hla tebchaws uas tau ua tiav xyoo 1869.
kev lag luam hloov pauv lub ntiaj teb li cas?
Muaj ntau yam sib txawv uas ua rau muaj kev lag luam kiv puag ncig. Industrialization hloov lub ntiaj teb los ntawm kev nce qib thiab nce kev siv tshuab, Kev lag luam, kev cuam tshuam hauv zej zog, Kev lag luam hauv nroog thiab kev lag luam, pej xeem kev loj hlob, thiab peev. … Mining thiab textile kev lag luam kuj tau pab.
Yuav ua li cas kev lag luam hloov kho zej zog?
Reformkev siv zog thaum lub sijhawm no tau yug los rau ntau qhov kev hloov pauv tseem ceeb hauv Tebchaws Meskas thiab Tebchaws Askiv. Cov no suav nrog yuav tsum muaj kev kawm rau pej xeem, kev cai lij choj ua haujlwm rau menyuam yaus, thiab yim teev hnub ua haujlwm. Kev hloov kho kuj tseem hais txog nyiaj hli tsawg kawg nkaus, them nyiaj rau kev sib tsoo hauv chaw ua haujlwm, thiab txhim kho kev huv huv.
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).
Vim li cas cov neeg ua lag luam suav tias yog kev lag luam kev lag luam?
Kev ua lag luam tuaj yeem raug saib raws li kev txuas ntxiv ntawm kev sib tw, hauv qhov kev pom ntawm kev ua lag luam ib txwm suav nrog pom tias qee yam khoom tuaj yeem yuav hauv qhov chaw tshwj xeeb rau qee tus nqi tshwj xeeb, tej zaum tom qab ntawd muab tso ua ke hauv cov txheej txheem tsim khoom los tsim ib yam dab tsi uas tuaj yeem muag hauv ib qho tshwj xeeb… Vim li cas cov neeg ua lag luam tseem ceeb rau kev lag luam?
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.
