2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Muaj ob hom kev hloov pauv-ywj siab thiab nyob ruaj khov. … Teb: Ib qho txawv txawv txawv yog raws nraim li nws suab zoo li. Nws yog qhov sib txawv uas nyob ib leeg thiab tsis hloov los ntawm lwm qhov hloov pauv koj tab tom sim ntsuas. Piv txwv li, ib tug neeg lub hnub nyoog tej zaum yuav yog ib tug txawv txawv variable.
Koj puas hloov qhov hloov pauv ywj pheej lossis kev vam meej?
Ib txoj hauv kev yooj yim rau kev xav txog kev ywj pheej thiab kev hloov pauv yog, thaum koj ua qhov kev sim, tus hloov pauv ywj pheej yog qhov koj hloov, thiab qhov sib txawv ntawm qhov hloov pauv yog qhov hloov pauv. vim li ntawd.
Puas hloov pauv hloov pauv ywj pheej hauv kev sim?
Cov kev hloov pauv no yog hu ua qhov hloov pauv. Ib qho kev sib txawv yog txhua yam, qhov zoo, lossis qhov xwm txheej uas tuaj yeem muaj nyob hauv ntau qhov sib txawv lossis hom. Ib qho kev sim feem ntau muaj peb hom kev hloov pauv: ywj siab, nyob ruaj khov, thiab tswj tau. Tus tus hloov pauv ywj pheej yog qhov hloov pauv los ntawm tus kws tshawb fawb.
Puas tus hloov pauv ywj pheej hloov tau lossis tsis yog?
Ib qhov sib txawv yog txhua yam, qhov zoo, lossis qhov xwm txheej uas tuaj yeem muaj nyob hauv ntau qhov sib txawv lossis hom. Ib qho kev sim feem ntau muaj peb hom kev hloov pauv: ywj siab, nyob ruaj khov, thiab tswj tau. Qhov kev hloov pauv ywj pheej yog qhov hloov pauv los ntawm tus kws tshawb fawb.
Koj puas tuaj yeem hloov pauv tus kheej hloov pauv?
2) Tsis yog linearities ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm tus kheej feem ntau tuaj yeem ua linearizedby hloov pauv tus hloov pauv ywj pheej. Kev hloov pauv ntawm qhov hloov pauv ywj pheej feem ntau tsis hloov pauv cov ntsiab lus yuam kev.
Pom zoo:
Kev hais lus ywj pheej puas tsim nyog hauv lub zej zog ywj pheej?
Kev ywj pheej ntawm kev hais lus yog tib neeg txoj cai hauv txhua haiv neeg dawb, nws yog qhov tseem ceeb hauv kev txiav txim siab los ntawm tsoomfwv mus rau theem zej zog. Thaum tib neeg txoj cai tseem ceeb no raug hem, tib neeg muaj kev xav thiab yuav ua dab tsi los tiv thaiv nws.
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?
