2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
nqe lus twg hais txog kev sib tw thiab kev hloov pauv yog qhov tseeb? A. Duplications ua rau duplications ntawm chromosome, whereas translocations koom nrog kev sib pauv ntawm chromosome ntu.
Qhov kev sib koom ua ke twg yog qhov piv txwv ntawm A purine thiab A pyrimidine hauv qhov kev txiav txim ntawd)?
Cov cai ntawm kev sib koom ua ke (lossis nucleotide pairing) yog: A nrog T: purine adenine (A) ib txwm ua khub nrog pyrimidine thymine (T) C nrog G:cov pyrimidine cytosine (C) ib txwm ua khub nrog purine guanine (G)
Yuav ua li cas DNA replication txawv hauv eukaryotes piv rau prokaryotes quizlet?
DNA replication txawv li cas hauv cov hlwb prokaryotic thiab eukaryotic hlwb? Hauv cov cell prokaryotic feem ntau, rov ua dua pib los ntawm ib qho taw tes, thiab nws txuas ntxiv mus rau ob qho kev qhia kom txog thaum tag nrho cov chromosome tau theej. Hauv cov hlwb eukaryotic, rov ua dua tuaj yeem pib ntau pua qhov chaw ntawm DNA molecule.
Vim li cas RNA koom ua ke rau hauv DNA molecule thaum DNA replication?
Nws yuav tsum muaj rau DNA replication vim cov enzymes uas catalyze cov txheej txheem no, DNA polymerases, tsuas yog ntxiv nucleotides tshiab rau ib tug uas twb muaj lawm strand ntawm DNA. … Cov RNA primers no tuaj yeem ua de novo.
Yuav ua li cas hom txheej txheem yog DNA replication?
DNA replication yog ua los ntawm ib txheej txheem kev saib xyuas ib nrab uas ob txoj hluacais thiab ua cov qauv rau kev sib txuas ntxiv xws li txhua tus ntxhais molecule muaj ib tus niam txiv txoj hlua thiab ib txoj hlua tshiab raws li qhia hauv daim duab.
Pom zoo:
Nqe lus twg hais txog pyrantel pamoate yog qhov tseeb?
Cov lus teb yog D. Cov lus twg hais txog pyrantel pamoate yog qhov tseeb? Pyrantel pamoate, tus agonist ntawm nicotinic receptors,yog sib npaug rau albendazole thiab mebendazole hauv kev khontawm cov kab mob nematode. Nws ua rau cov neeg laus kab mob hauv plab, tab sis tsis nyob rau hauv qe.
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?
