2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Embryology, kev kawm txog kev txhim kho ntawm lub cev ntawm lub cev rau nws daim ntawv laus, muab pov thawj rau kev hloov pauv raws li kev tsim embryo nyob rau hauv cov pab pawg sib txawv ntawm cov kab mob feem ntau tau txais kev txuag. … Lwm daim ntawv pov thawj ntawm evolution yog kev sib koom ua ke ntawm cov kab mob uas sib koom ib puag ncig zoo sib xws.
Kev sib piv embryology muab pov thawj ntawm evolution li cas?
Yog li, Kev Sib Piv Embryology muab muaj zog txhawb rau qhov kev xav uas Darwin tau hais los piav qhia qhov pom tseeb zoo sib xws thiab qhov sib txawv nws pom ntawm ntau hom, piv txwv li tias cov hom no yog qhov tshwm sim ntawm cov txheej txheem evolutionary uas muaj kev xaiv (tam sim no paub tias yog noob raws li) rau cov qauv thiab …
Cov pov thawj rau embryology yog dab tsi?
Embryology, lossis kev kawm ntawm embryos, tuaj yeem pab peb nrhiav tau ntau yam pov thawj los txhawb txoj kev xav ntawm evolution. Piv txwv li, cov qauv vestigial xws li tails lossis gills hauv tib neeg tuaj yeem pom hauv embryos thaum ntxov thaum lawv loj hlob. Lwm qhov pov thawj tseem ceeb yog Hox noob.
embryology txhais li cas hauv evolution?
Kev kawm ntawm ib hom pov thawj ntawm evolution hu ua embryology, kev kawm ntawm embryos. Ib tug embryo yog ib tug tsis tau yug los (los yog unhatched) tsiaj los yog tib neeg cov hluas nyob rau hauv nws thawj theem. … Piv txwv li, ntses embryos thiab tib neeg embryos ob leeg muaj gill slits. Nyob rau hauv cov ntses lawv loj hlob mus rau hauv gills, tab sis nyob rau hauv tib neeg lawv ploj ua ntejyug.
3 qhov pov thawj ntawm kev hloov pauv yog dab tsi?
Pov thawj rau evolution los ntawm ntau yam sib txawv ntawm biology:
- Kev xav. Cov tsiaj txhu yuav qhia cov yam ntxwv ntawm lub cev zoo sib xws vim tias qhov tshwj xeeb muaj nyob rau hauv cov poj koob yawm txwv (homologous qauv).
- Molecular biology. DNA thiab cov noob caj noob ces cuam tshuam txog kev sib koom caj ces ntawm lub neej. …
- Biogeography. …
- Fossils. …
- Kev soj ntsuam ncaj qha.
Pom zoo:
Vim li cas spss tsis suav nrog kev hloov pauv hloov pauv?
Thaum siv qhov hloov pauv dummy, koj xav tau pab pawg sib piv kom thiaj li tuaj yeem txhais cov coefficients hauv kev txheeb xyuas qhov rov qab. SPSS tau txiav tawm tsis suav nrog ib lub xeev los muab koj nrog pawg sib piv no. … SPSS cia li tshem tawm ib qeb uas tam sim no yog koj qeb siv.
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.
