Video: Qhov txawv ntawm Singleton qhov chaw thiab cov chaw qhia parsimony yog vim li cas PI qhov chaw muaj txiaj ntsig zoo rau kev txiav txim siab Phylogentic kev sib raug zoo thaum S qho
2024 Tus sau: Edward Hancock | [email protected]. Kawg hloov kho: 2023-12-16 01:32
Qhov txawv ntawm Singleton qhov chaw thiab Parsimony yog dab tsi - Cov chaw qhia paub ? PI sites yog pab tau rau kev txiav txim phylogenetic kev sib raug zoo vim lawv muaj ob tug txawv nucleotides uas tuaj yeem tshwm sim ntau dua ob zaug thiab qhia tias tsob ntoo twg ntau dua parsimonious.
Ua raws li qhov no saib, qhov chaw qhia ntawv parsimony yog dab tsi?
Parsimony - qhov chaw qhia paub . A qhov chaw yog parsimony - qhia paub Yog hais tias nws muaj tsawg kawg yog ob hom nucleotides (los yog amino acids), thiab tsawg kawg yog ob ntawm lawv tshwm sim nrog tsawg zaus ntawm ob.
Tom qab ntawd, lo lus nug yog, qhov twg Cladogram yog parsimonious tshaj plaws thiab yog vim li cas? Thaum kev tsis sib haum xeeb zoo li no tshwm sim, tsob ntoo txhawb nqa zoo tshaj plaws yog qhov uas yog feem ntau parsimonious (piv txwv li, yuav tsum muaj kev hloov pauv tsawg tshaj plaws).
Kuj paub yog, txoj kev parsimony yog dab tsi?
Txoj kev Parsimony . Parsimony kev tsom xam yog qhov thib ob txoj hauv kev los kwv yees cov ntoo phylogenetic los ntawm kev sib txuas ua ke. Hauv txoj kev parsimony , lub hom phiaj yog txhawm rau txheeb xyuas qhov phylogeny uas yuav tsum tau hloov pauv tsawg tshaj plaws los piav qhia qhov sib txawv ntawm cov kab ke pom.
Nws txhais li cas thaum lub tswv yim phylogeny tau hais tias yog tus parsimonious tshaj plaws?
Hauv phylogenetics, qhov siab tshaj plaws parsimony yog qhov zoo tshaj plaws raws li qhov phylogenetic tsob ntoo uas txo tus naj npawb tag nrho ntawm cov cim-xeev hloov pauv yuav tsum nyiam. Es tsis txhob, lub feem ntau - parsimonious tsob ntoo yuav tsum pom nyob rau hauv "ntoo qhov chaw" (piv txwv li, ntawm tag nrho cov ntoo tau).
Pom zoo:
Hom kev hlub twg yog kev sib koom ua ke ntawm kev mob siab rau kev sib raug zoo thiab kev mob siab rau lub sijhawm?
Kev hlub tshua
Dab tsi yog xyoo 1978 Lub Tsev Hais Plaub Siab Txiav Txim Siab uas tsis lees paub lub tswv yim ntawm kev txiav txim siab ruaj khov tab sis tso cai rau cov haiv neeg no tuaj yeem siv los ua ib qho ntawm ntau qhov kev txiav txim siab nkag?
Regents ntawm University of California v. Bakke (1978) | PBS. Hauv Regents ntawm University of California v. Bakke (1978), Lub Tsev Hais Plaub tau txiav txim siab tsis tsim nyog lub tsev kawm ntawv siv kev ntxub ntxaug 'quotas' hauv nws cov txheej txheem nkag, tab sis tau hais tias cov kev lees paub ua haujlwm tuaj yeem ua raws cai hauv qee qhov xwm txheej
Dab tsi yog qhov txawv ntawm Singleton qhov chaw thiab cov chaw qhia parsimony?
Qhov txawv ntawm Singleton qhov chaw thiab Parsimony-Informative sites yog dab tsi? Singleton tsuas yog ua ib qho piv txwv tsim thiab muaj tsawg kawg yog 2 hom nucleotides thiab tshwm sim ntau zaus. Thaum parsimony- cov chaw qhia paub kuj muaj 2 nucleotides tab sis tsuas yog ob ntawm lawv tshwm sim nrog tsawg zaus ntawm ob
Yuav ua li cas tshwm sim thaum lub sij hawm Hanukkah ua kev zoo siab uas ua rau muaj kev ntshai ntawm pab pawg piav qhia vim li cas qhov no ua rau muaj kev ntshai?
Yuav ua li cas tshwm sim thaum lub sij hawm Hanukkah ua kev zoo siab uas ua rau muaj kev ntshai ntawm cov pab pawg? Qhov no ua rau muaj kev ntshai vim tias yog tub sab paub ib tus neeg nyob ntawd lawv tuaj yeem siv qhov ntawd ua kom zoo dua nrog Nazis los ua kev sib tham. Yawg Van Daan xav tias tub sab yuav tsis qhia tias lawv nyob nkaum
Dab tsi yog qhov txawv ntawm kev sib raug zoo ntawm tus kheej thiab kev sib raug zoo?
Ob qho kev paub txog kev sib raug zoo thiab kev sib raug zoo ntawm tus kheej hais txog tib yam - kev sib tham nrog lwm tus. Kev sib raug zoo ntawm tus kheej yuav ua rau koj tham nrog thiab ua haujlwm nrog txhua hom neeg, suav nrog cov thawj coj, cov neeg ua haujlwm, thiab cov neeg siv khoom. Kev sib raug zoo ntawm tus kheej ua ntau dua li muab koj lub peev xwm sib txuas lus nrog lwm tus neeg