2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Kaum Peb Hlis Hloov Kho- dhau los ntawm Senate rau lub Plaub Hlis 8, 1864; los ntawm Lub Tsev rau Lub Ib Hlis 31, 1865; thiab tau pom zoo los ntawm cov xeev thaum Lub Kaum Ob Hlis 6, 1865-kev tshem tawm kev ua cev qhev "hauv Tebchaws Meskas, lossis ib qho chaw nyob rau hauv lawv txoj cai." Congress xav kom yav dhau los Confederate lub xeev kom pom zoo rau Kaum Ib Hlis Ntuj Hloov Kho raws li ib tug …
13 14 thiab 15 kev hloov kho ua dab tsi?
Lub 13th, 14, thiab 15th Amendments, hu ua Kev Hloov Pauv Kev Tsov Rog, tau tsim kom muaj kev sib npaug rau cov qhev uas nyuam qhuav dim. … Txoj Kev Hloov Kho thib 15 txwv tsis pub tsoomfwv tsis lees paub cov pej xeem Asmeskas txoj cai pov npav raws li haiv neeg, xim, lossis kev ua haujlwm yav dhau los.
14 Txoj Kev Hloov Kho Puas tau tshem tawm kev ua cev qhev?
14th Amendment to the US Constitution, pom zoo nyob rau hauv 1868, tau tso cai ua neeg xam xaj rau txhua tus neeg uas yug los lossis ua neeg nyob hauv Tebchaws Meskas - suav nrog cov neeg qub qhev - thiab lav tag nrho cov pej xeem " kev tiv thaiv sib npaug ntawm txoj cai. " Ib qho ntawm peb qhov kev hloov kho tau dhau los thaum lub sijhawm Reconstruction era kom tshem tawm kev ua cev qhev thiab …
Kev Hloov Kho 13 hais li cas?
Tsis yog kev ua qhev lossis kev ua haujlwm tsis txaus ntseeg, tsuas yog yog kev rau txim rau kev ua txhaum cai ntawm tog neeg yuav raug txiav txim raug cai, yuav tsum muaj nyob hauv Tebchaws Meskas, lossis ib qho chaw nyob ntawm lawv qhov chaw txiav txim..
Leej twg hla dhau 13th 14th thiab 15th Hloov Kho?
Cov kev hloov pauv no tsis tau ua rawsmus rau hauv txhua txoj kev. "Jim Crow" txoj cai hla dhau qhov Kev Hloov Kho 14th thaum tej yam xws li kev ntsuas kev nyeem ntawv, kev xaiv tsa se, thiab "dawb thawj" tiv thaiv cov neeg dub los ntawm kev pov npav. Nws tsis yog txog thaum Txoj Cai Lij Choj Txoj Cai Lij Choj hais tias cov kev hloov pauv no tau ua tiav txhua txoj hauv kev.
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.
