2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Nov yog tam sim no tau nthuav tawm rau lub rooj sib tham raws li kev hloov kho txoj cai, thiab nws yuav siv ob feem peb suav pov npav los txais yuav. Txoj kev cai lij choj yuav siv sij hawm tam sim yog tias nws tau txais, tshwj tsis yog cov tswv cuab pov npav tias nws yuav siv sijhawm tom qab, uas yuav tsum muaj kev tso cai (sib tham hauv nqe lus hauv qab no).
Ntau npaum li cas cov cai yuav tsum hloov kho?
Peb feem ntau raug nug ntau npaum li cas lossis thaum twg lub koom haum ntiag tug lossis koom haum ua lag luam yuav tsum hloov kho lawv cov cai. Txoj cai ntawm tus ntiv tes xoo teb yog tsawg kawg txhua tsib xyoos thiab ua ntej yog tias tau muaj kev hloov pauv hauv cov qauv lossis hauv zos, xeev thiab tsoomfwv txoj cai.
Txoj kev hloov kho txoj cai yog dab tsi?
Nyob ntawm lub rooj sib tham, muaj pawg thawj coj saib xyuas kev pov npav raukev hloov kho. Cov kev cai lij choj yuav hais txog qhov tsawg kawg nkaus pov npav uas yuav tsum tau ua kom dhau qhov kev hloov kho, tab sis feem ntau qhov kev pov npav feem ntau yog qhov yuav tsum tau ua. Khaws feeb. … Xyuas kom meej tias cov feeb suav nrog qhov kev hloov kho nws tus kheej, qhov kev pov npav tag nrho, thiab yog tias qhov kev hloov kho tau pom zoo.
Dab tsi yog qhov txawv ntawm kev hloov kho thiab hloov kho txoj cai?
Ib pawg me me kawm txog cov cai lij choj, suav nrog cov kev hloov pauv uas xav tau, thiab nthuav tawm tag nrho cov ntaub ntawv tshiab rau pawg thawj coj lossis cov tswv cuab. … Kev kho dua yog pom zoo los ntawm tib lub pov npav uas yuav tsum tau hloov kho cov cai, feem ntau yog ob feem peb ntawm cov kev pov npav.
Yuav tsum tau kos npe thiab sau hnub tim?
Leej twg yuav tsum kos npe rau txoj cai? Tsis muaj leej twg yuav tsum tau kos npethe bylaws. Lawv tsuas yog khaws cia rau hauv phau ntawv teev sijhawm ua haujlwm nrog rau cov thawj coj 'thiab cov tswv lag luam' feeb thiab cov kev daws teeb meem.
Pom zoo:
Qhov twg yog qhov hloov kho txoj cai lij choj hauv kev cai lij choj?
Tshooj V ntawm Tebchaws Meskas Txoj Cai Lij Choj qhia txog cov txheej txheem yooj yim rau kev hloov kho kev cai lij choj. Congress tuaj yeem xa daim ntawv hloov kho kev cai lij choj rau cov xeev, yog tias cov lus hloov kho tau pom zoo los ntawm ob feem peb ntawm kev pov npav ntawm ob lub tsev.
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.
