2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
ob leeg Darwin thiab Lamarck tau los nrog tswv yim los piav qhia seb cov kab mob hloov pauv li cas rau lub sijhawm, txheej txheem hu ua evolution. … Nws ntseeg hais tias cov kab mob tuaj yeem hloov tau cov yam ntxwv uas lawv tau hais thaum lawv lub neej, thiab cov kev hloov no yuav raug xa mus rau lwm tiam neeg.
Lamarck thiab Darwin tau piav qhia txog kev hloov pauv li cas?
Lamarck txoj kev xav tau hu ua txoj kev xav ntawm cov yam ntxwv tau txais thiab Darwin tau raug hu ua txoj kev xav ntawm kev hloov pauv los ntawm kev xaiv ntuj. … Darwin txoj kev xav tau hais tias kab mob tau txais txiaj ntsig hloov pauv ua ntej kev hloov pauv hauv ib puag ncig. Nws xav tias lawv tau hloov pauv los ntawm lub sijhawm thaum yug.
Dab tsi yog qhov txawv ntawm Darwinian thiab Lamarckian txoj kev xav ntawm evolution?
Dab tsi yog qhov txawv ntawm Darwin txoj kev xav ntawm evolution thiab Lamarck txoj kev xav ntawm evolution? Lamarck ntseeg tias cov kab mob tuaj yeem ua tau tus yam ntxwv hauv lawv lub neej uas lawv tuaj yeem dhau mus rau lawv cov xeeb ntxwv, tab sis Darwin tsis ntseeg tias cov yam ntxwv no tuaj yeem dhau mus.
Lamarck txoj kev xav ntawm evolution yog dab tsi?
Lamarckism, txoj kev xav ntawm evolution raws li ntawm lub hauv paus ntsiab lus tias lub cev hloov pauv hauv cov kab mob hauv lawv lub neej-xws li kev loj hlob ntawm ib lub cev lossis ib feem los ntawm kev siv ntau ntxiv-yuav ua tau. kis mus rau lawv cov xeeb ntxwv.
Vim li cas Lamarck txoj kev xav ntawm evolution raug tsis lees paub?
Lamarck txoj kev xav ntawmevolution, tseem hu ua txoj kev xav ntawm qhov qub txeeg qub teg ntawm cov cim tau txais tau raug tsis lees paub vim nws tau hais tias tus cwj pwm tau txais uas cov kab mob tau txais los ntawm nws txoj kev ua neej raug xa mus rau nws tiam tom ntej, uas tsis muaj peev xwm txij li thaum cov cim tau los tsis hloov pauv rau…
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.
