2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Forensics: Phylogenetics yog siv los ntsuas DNA cov pov thawj hauv tsev hais plaub los qhia txog xwm txheej, piv txwv li. qhov twg ib tug neeg tau ua txhaum cai, thaum zaub mov muaj paug, los yog qhov twg txiv ntawm tus me nyuam tsis paub.
phylogeny siv rau dab tsi?
Phylogeny yog siv tau rau cov kws sau sevim tias nws tuaj yeem siv los tshawb xyuas kev txhim kho evolutionary. Taxonomy coj mus rau txoj kev kawm ntawm phylogeny los ntawm lub moj khaum ntawm faib cov kab mob mus rau hauv ib tug hierarchy ntawm taxonomic pawg xws li tsev neeg, genus thiab hom.
phylogenies qhia peb li cas?
Ib phylogeny, lossis evolutionary tsob ntoo, sawv cev kev sib raug zoo ntawm cov kab mob los yog pab pawg ntawm cov kab mob, hu ua taxa (singular: taxon). … Ib pab pawg tuaj yeem ua rau koj paub txog qhov twg ntawm tsob ntoo loj ntawm lub neej uas cov kab mob tseem ceeb ntog. Nws kuj tseem siv tau thaum tsim cov ntoo evolutionary.
Cov ntaub ntawv dab tsi tso cai rau peb los xam cov ntaub ntawv phylogenetic?
Cov algorithms uas twb muaj lawm tso cai rau peb los txiav txim phylogenetic tes hauj lwm los ntawm sequences (DNA, protein los yog binary), pawg ntoo, thiab nyob deb matrices, tab sis tsis muaj txoj hauv kev los tsim lawv siv cov gene xaj cov ntaub ntawv raws li kev nkag.
lwm lo lus rau phylogenetic yog dab tsi?
Nyob rau hauv nplooj ntawv no koj tuaj yeem tshawb pom 15 cov lus sib piv, cov lus hais tawm, cov lus qhia tsis zoo, thiab cov lus hais txog kev siv lub cev, xws li: ontogeny,evolution, organic evolution, phylogenesis, phylogenetic, phylogenetics, monophyly, metazoan, cospeciation, phylogenomics thiab taxonomic.
Pom zoo:
Puas yog cov dab dab dab dab dab dab dab dab dab dab dab dab?
Myth: Ib tug dab tshos tsis yog neeg ncaj ncees yog tiasnws haum yog. Fact: Tu siab, qhov no yog ib lo lus tsis tseeb uas tau raug perpetuated los ntawm aversive trainers. Txawm hais tias haum rau lub caj dab kom zoo khawb rau hauv cov tawv nqaij rhiab nyob ib ncig ntawm lub caj dab, uas ua rau muaj kev puas tsuaj loj rau cov thyroid, esophagus, thiab trachea.
Cov ntaub ntawv qhia ntawv puas txhawb nqa cov ntaub ntawv kawm?
Cov ntaub ntawv qhia yuav tsum txhawb nqa txoj kev kawm lub tswv yim, cov hom phiaj thiab cov hom phiaj ntawm Cheeb Tsamthiab cov hom phiaj ntawm cov ntaub ntawv kawm uas cov ntaub ntawv yuav raug siv. … Cov ntaub ntawv qhia yuav tsum ua tau raws li cov qauv zoo ntawm cov ntsiab lus tseeb thiab kev nthuav qhia.
Thaum cov ntaub ntawv tshiab cuam tshuam nrog kev muab cov ntaub ntawv qub no hu ua?
Nrog retroactive cuam tshuam, cov ntaub ntawv tshiab cuam tshuam lub peev xwm rov qab cov ntaub ntawv qub. Nrog kev cuam tshuam tsis zoo, nws yog qhov rov qab: cov ntaub ntawv qub cuam tshuam qhov rov qab los ntawm cov ntaub ntawv tshiab tau kawm.
Puas yog cov ntaub ntawv sib tw cov ntaub ntawv raug cai?
Kev tsim "Cov ntaub ntawv cog lus" yog cov ntaub ntawv sau uas txhais lub luag haujlwm, kev lav phib xaub, thiab "Ua haujlwm" raws li Daim Ntawv Cog Lus Tsim Kho, thiab raug cai lij choj rau ob tog (Tswj thiab tus neeg cog lus).
Cov ntaub ntawv twg muaj cov ntaub ntawv bituminous?
Nws muaj ob chav kawm ntawm cov khoom siv bituminous: (1) asph alt; thiab (2) tar. Cov ntaub ntawv no feem ntau yog siv los ua dej-pov thawj sealants, thiab ua cov ntaub ntawv los tuav cov aggregate ua ke nyob rau hauv bituminous pavements. Dab tsi yog cov khoom siv bituminous?
