Video: Puas yog qhov ntsuas qhov kev hloov pauv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ntau yam . Cov ntau yog qhov yooj yim tshaj plaws kev ntsuas ntawm variation nrhiav. Nws tsuas yog tus nqi siab tshaj tawm tus nqi qis tshaj. Txij li thaum ntau tsuas yog siv qhov loj tshaj plaws thiab qhov tsawg tshaj plaws, nws muaj kev cuam tshuam loj heev los ntawm qhov muaj nuj nqis heev, uas yog - nws tsis tiv taus kev hloov pauv.
Hauv qhov no, 3 qhov kev ntsuas ntawm kev hloov pauv yog dab tsi?
Cov kev ntsuas feem ntau ntawm kev hloov pauv yog qhov ntau , lub interquartile ntau (IQR), qhov sib txawv, thiab tus qauv sib txawv.
Qhov thib ob, yog qhov ntsuas qhov sib txawv? Cov ntsiab lus. Cov ntau , inter-quartile ntau thiab standard deviation yog tag nrho ntsuas uas qhia tus nqi ntawm hloov pauv nyob rau hauv ib tug dataset. Cov ntau yog qhov yooj yim tshaj plaws ntsuas qhov sib txawv los xam tab sis tuaj yeem ua yuam kev yog tias cov ntaub ntawv muaj qhov tseem ceeb heev.
Hauv qhov no, qhov kev hloov pauv yog dab tsi thiab nws ntsuas li cas?
Kev ntsuas ntawm kev hloov pauv yog ob qho khoom ntawm qhov kev faib tawm qhov tshwm sim lossis cov qauv kwv yees ntawm lawv. Qhov ntau ntawm cov qauv yog qhov sib txawv ntawm qhov loj tshaj plaws thiab qhov tsawg tshaj plaws. Qhov sib txawv interquartile muaj peev xwm siv tau ntau dua. Ib qho piv txwv txhais tau siv rau qhov kev faib tawm qhov tshwm sim.
Plaub qhov kev ntsuas ntawm kev hloov pauv yog dab tsi?
Muaj plaub qhov kev ntsuas uas nquag siv ntawm kev hloov pauv: lub ntau , interquartile ntau yam , variance, thiab txheem sib txawv . Hauv ob peb nqe lus tom ntej no, peb yuav saib txhua qhov ntawm plaub qhov kev ntsuas ntawm qhov sib txawv ntawm qhov nthuav dav ntxiv.
Pom zoo:
Dab tsi yog qhov kev hloov pauv hloov pauv?
Kev hloov pauv, hauv molecular biology, yog hais txog kev hloov pauv hauv deoxyribonucleic acid (DNA), qhov twg ib qho (ob lub nplhaib) purine hloov pauv rau (ib lub nplhaib) pyrimidine, los yog vice versa
Vim li cas tom qab kev hloov pauv kev hloov pauv tseem ceeb?
Kev hloov pauv tom qab kev txhais lus (PTMs) xws li glycosylation thiab phosphorylation ua lub luag haujlwm tseem ceeb ntawm kev ua haujlwm ntawm hemostatic proteins thiab tseem ceeb heev hauv kev teeb tsa kab mob. Xws li theem nrab hloov pauv rau cov proteins hemostatic muaj ntau yam cuam tshuam rau lawv lub peev xwm los cuam tshuam nrog lwm cov proteins
Dab tsi yog qhov txawv ntawm ib puag ncig kev hloov pauv thiab kev hloov pauv qub txeeg qub teg?
Qhov sib txawv ntawm cov yam ntxwv ntawm cov tib neeg ntawm tib hom yog hu ua variation. Qhov no yog inherited variation. Qee qhov kev hloov pauv yog qhov tshwm sim ntawm qhov sib txawv ntawm ib puag ncig, lossis ib tus neeg ua dab tsi. Qhov no yog hu ua environmental variation
Puas yog qhov kev ntsuas zoo ntawm kev hloov pauv?
Qhov ntau yog qhov yooj yim tshaj plaws kev ntsuas ntawm qhov sib txawv los xam tab sis tuaj yeem ua yuam kev yog tias cov ntaub ntawv muaj qhov tseem ceeb heev. Tus qauv sib txawv yog qhov kev ntsuas muaj zog tshaj plaws ntawm kev hloov pauv vim nws yuav siv sij hawm los ntsuas qhov ntsuas ntawm txhua tus nqi hauv cov ntaub ntawv sib txawv ntawm qhov nruab nrab
Peb qhov laj thawj tseem ceeb ntawm kev hloov pauv hloov pauv yog dab tsi?
Allele frequencies nyob rau hauv ib tug pej xeem yuav hloov vim plaub lub hauv paus zog ntawm evolution: Natural Selection, Genetic Drift, Mutations thiab Gene Flow. Kev hloov pauv yog qhov kawg ntawm cov alleles tshiab hauv cov noob caj noob ces. Ob ntawm cov txheej txheem tseem ceeb tshaj plaws ntawm kev hloov pauv hloov pauv yog: Natural Selection thiab Genetic Drift