2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Inertia: nyiam ntawm ib yam khoom los tiv thaiv kev hloov hauv nws qhov nrawm. Ib qho khoom ntawm so muaj xoom tshaj tawm - thiab (thaum tsis muaj lub zog tsis sib npaug) yuav nyob nrog xoom tshaj tawm. Xws li cov khoom yuav tsis hloov nws lub xeev ntawm kev txav (piv txwv li, tshaj tawm) tshwj tsis yog ua raws li qhov tsis sib haum xeeb.
Yuav ua li cas lub zog yuav tsis hloov qhov khoom txav?
Sib npaug zog tsis txhob hloov qhov kev txav ntawm ib qho khoom. Kev txav ntawm ib qho khoom yuav tsis hloov yog tias lub zog thawb lossis rub cov khoom sib npaug.
Dab tsi tuaj yeem hloov pauv qhov khoom txav?
A force tuaj yeem ua kom nrawm lossis qeeb ib qho khoom. Lub zog tuaj yeem hloov qhov kev taw qhia uas qhov khoom txav mus. Lub zog loj dua ntawm ib qho khoom yuav ua rau muaj kev hloov loj dua hauv kev txav. Cov khoom hnyav dua yuav tsum muaj lub zog loj dua li cov khoom sib zog txhawm rau txhawm rau hloov pauv tib yam hauv kev txav.
Yuav ua li cas qhov kev txav ntawm ib yam khoom uas tsis hloov pauv?
Thaum ib yam khoom tsis txav los teb rau kev thawb lossis rub, nws yog vim lwm lub zog sib npaug, xws li lub ntiajteb txawj nqus lossis kev sib txhuam, yog tawm tsam kev thawb lossis rub. Lub ntiajteb txawj nqus (lub ntiaj teb lub zog rub) thiab kev sib txhuam (lub zog ntawm ob qhov chaw) yog cov zog uas ua haujlwm tawm tsam.
Yuav tsum hloov tsab ntawv tsa suab?
Lub zog tsis sib npaug yog xav tau los hloov ib qho khoom txav.
Pom zoo:
Yuav ua li cas hloov cov khoom txav mus los?
Txoj hauv kev yooj yim tshaj plaws ntawm kev hloov cov tswv cuab yog dhau ntawm Daim Ntawv Muag Khoom, ib daim ntawv raug cai uas sawv cev rau daim ntawv cog lus ntawm tus neeg yuav khoom thiab tus neeg muag khoom qhia txog kev sib pauv khoom (vaj tse) rau txiaj.
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 synovial sib koom ua ke muab kev txav txav tshaj plaws?
Kev sib koom ua ke nrog ntau qhov kev txav siab tshaj plaws yog pob-thiab-socket sib koom. Ntawm cov pob qij txha no, lub taub hau sib npaug ntawm ib pob txha (pob) haum rau hauv qhov sib koom ua ke (lub qhov (socket)) ntawm cov pob txha uas nyob ib sab (saib daim duab 9.
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?
