2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Kev sib txawv hauv Tebchaws Meskas tau pib hauv 1947 thaum Lub Rooj Sib Tham Kev Txiav Txim ntawm Tebchaws Meskas tau txhawb kom cov tsev hais plaub tso qee cov menyuam yaus nyob rau hauv kev txiav txim es tsis txhob raug foob, thiab xyoo 1960, Michigan, Connecticut, Illinois, thiab New York muaj txoj cai tso cai kho mob es tsis txhob raug kaw rau qee tus neeg laus …
Kev hloov pauv hloov pauv tau pib thaum twg hauv Canada?
Kev piav qhia: Royal Canadian Mounted Police (RCMP) Lub Tsev Haujlwm Txo Kev Ua Phem hauv 'J' Division tau siv Txoj Haujlwm Pabcuam Hluas thiab Kev Sib Tw (YIDP) hauv 2009. YIDP yog ib txoj haujlwm ua pov thawj tsim los hloov cov tub ntxhais hluas hnub nyoog 12-17 mus deb ntawm txoj kev ncaj ncees txhaum cai.
Lub hom phiaj ntawm kev hloov pauv yog dab tsi?
Kev hloov pauv cov kev pab cuam yog lwm txoj hauv kev pib lossis txuas ntxiv kev ua haujlwm ntawm cov tub ntxhais hluas hauv qhov kev ua txhaum cai ntawm cov menyuam yaus. Vim li cas Diversion Programs? Lub hom phiaj ntawm kev hloov pauv yog txhawm rau hloov cov tub ntxhais hluas ua txhaum cai los ntawm kev ncaj ncees los ntawm kev ua haujlwm, saib xyuas, thiab txhawb nqa.
Kev hloov pauv kev vam meej npaum li cas?
Txoj kev tshawb no pom tias kev hloov pauv rau cov tub ntxhais hluas yog muaj txiaj ntsig zoo dua li cov txheej txheem kev ncaj ncees ntawm cov menyuam yaushauv kev txo qis kev rov ua dua tshiab, nrog rau cov kev pab cuam tsom rau nruab nrab mus rau cov tub ntxhais hluas muaj kev pheej hmoo siab ua tau zoo dua. cov uas tsom kwm cov neeg ua txhaum cai tsawg.
Leej twg pib txoj haujlwm hloov pauv?
Cov kev pab cuam feem ntau khiav los ntawm tub ceev xwm, lub tsev hais plaub, ib cheeb tsam tus kws lij choj chaw ua haujlwm, lossis chaw ua haujlwm sab nraud. Cov tsev hais plaub daws teeb meem feem ntau suav nrog kev hloov pauv raws li ib feem ntawm lawv txoj haujlwm.
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.
