Yuav ua li cas taxonomists soj ntsuam evolutionary kev sib raug zoo ntawm cov kab mob?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Yuav ua li cas taxonomists soj ntsuam evolutionary relationships ntawm cov kab mob ? Taxonomists soj ntsuam thephysical nta ntawm kab mob . Los ntawm kev sib piv cov qauv sib txawv thiab cov yam ntxwv, lawv muaj peev xwm tohypothesize txog qhov kev sib raug zoo ntawm cov kab mob.

Ib yam li ntawd, dab tsi tuaj yeem siv los txiav txim siab txog kev sib raug zoo ntawm kev hloov pauv?

Tshooj Summary. Txhawm rau tsim cov ntoo phylogenetic, cov kws tshawb fawb yuav tsum sau cov cim cov ntaub ntawv uas tso cai rau lawv ua evolutionary Kev sib txuas ntawm cov kab mob. Siv cov ntaub ntawv morphologic thiab molecular, cov kws tshawb fawb ua haujlwm rau txheeb xyuas homologous yam ntxwv thiab noob.

Tsis tas li ntawd, cov amino acid sequences siv los qhia txog kev sib raug zoo li cas? Siv Amino Acid Sequences Rau ShowEvolutionaryRelationships . Taw qhia: Hauv cov kab mob sib txawv lub aminoacid sequences ntawm cov proteins uas muaj qhov ua haujlwm zoo sib xws, tab sis tsis zoo ib yam. Txoj haujlwm no siv cov amino acid sequences los ntawm qee cov globinproteins.

Ntawm no, biogeography muaj txiaj ntsig li cas los txheeb xyuas kev sib raug zoo ntawm kev hloov pauv?

Biogeography tuaj yeem yog siv los piav qhia txog hom tsiaj uas qhia txog cov poj koob yawm txwv thiab thaj chaw sib cais tau yoog rau lawv qhov chaw tshiab ntawm kev xaiv vianatural. Cov ntaub ntawv fossil muab cov ntaub ntawv teev tseg ntawm cov yam ntxwv ntawm cov kab mob tau hloov pauv sijhawm.

Cov pov thawj caj ces muab cov ntaub ntawv qhia txog kev sib raug zoo li cas?

DNA pov thawj rau evolution Yog hais tias ob hom muaj "zoo tib yam" noob , nws yog vim lawv tau txais nws los ntawm ib tug poj koob yawm txwv. Ingeneral, lawv DNA sib txawv hauv homologous noob ntawm ob hom, qhov ntau nyob deb ntawm hom yog ntsig txog.