Video: Dab tsi yog lub ntsiab lus ntawm kev hloov pauv lom neeg hauv cov ntsiab lus ntawm allele zaus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Microevolution, los yog evolution ntawm me me, yog txhais raws li kev hloov hauv lub zaus ntawm noob variants, alleles , nyob rau hauv ib tug pej xeem ntau tiam. Teb ntawm biology uas kawm allele zaus nyob rau hauv pej xeem thiab yuav ua li cas lawv hloov lub sij hawm yog hu ua pej xeem genetics.
Kuj paub yog, dab tsi yog allele zaus thiab nws cuam tshuam li cas rau evolution?
Tom qab tag nrho, yog hais tias lub gene pas dej ua ke ntawm ib hom tseem zoo li qub, tsis muaj leej twg yuav thov cov hom muaj hloov zuj zus . Yog li, ib qho kev hloov hauv lub zaus ntawm alleles nyob rau hauv cov pejxeem, nyob rau hauv essence, yog lub ntsiab txhais ntawm evolution.
Tom qab ntawd, lo lus nug yog, dab tsi yog cov ntsiab lus ntawm cov gene pas dej ua ke thiab allele zaus? Allele zaus - qhov feem pua ntawm qhov tshwj xeeb allele muaj nyob rau hauv cov pejxeem. Gene Pool - qhov sum tag nrho alleles tam sim no nyob rau hauv tag nrho cov pejxeem ntawm ib hom tsiaj. evolution koom nrog kev hloov hauv allele zaus hauv cov pejxeem gene laug dhau ntau tiam neeg.
Ib yam li ntawd, allele frequencies evolution yog dab tsi?
Allele zaus . Allele zaus yog qhov ntsuas ntawm tus txheeb ze zaus ntawm ib allele nyob rau hauv ib tug genetic locus nyob rau hauv ib tug pej xeem. Pej xeem noob caj noob ces kawm txog qhov sib txawv "cua zog" uas yuav ua rau muaj kev hloov pauv hauv kev faib khoom thiab zaus ntawm alleles - nyob rau hauv lwm yam lus, rau evolution.
Dab tsi yog txhais los ntawm biological evolution?
Biological evolution yog txhais raws li kev hloov pauv caj ces hauv cov pej xeem uas tau txais los ntawm ntau tiam neeg. Cov kev hloov no yuav me me los yog loj, pom tau los yog tsis pom.
Pom zoo:
Lub ntsiab lus ntawm kev hloov pauv hauv kev txheeb cais yog dab tsi?
Variability hauv Statistics yog dab tsi? Variability (tseem hu ua kis los yog dispersion) yog hais txog kev nthuav tawm cov ntaub ntawv li cas. Variability muab txoj hauv kev los piav qhia ntau npaum li cas cov ntaub ntawv sib txawv thiab tso cai rau koj siv cov txheeb cais los sib piv koj cov ntaub ntawv rau lwm cov ntaub ntawv
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
Dab tsi tsim cov roj siab thiab nws hloov pauv li cas nrog kev hloov pauv hauv kinetic zog?
Gas siab yog tshwm sim los ntawm kev sib tsoo ntawm cov khoom siv roj nrog rau sab hauv ntawm lub thawv thaum lawv sib tsoo nrog thiab tawm dag zog rau ntawm phab ntsa ntim. Tom qab ntawd cov roj yog cua sov. Raws li qhov kub ntawm cov roj nce, cov khoom tau nce lub zog kinetic thiab lawv cov nrawm nrawm
Puas yog cov ntsiab lus uas muaj cov tshuaj lom neeg zoo sib xws yuav pom nyob rau tib lub sijhawm lossis hauv tib pab pawg piav qhia koj cov lus teb?
Qhov no yog vim hais tias cov tshuaj muaj zog nyob ntawm tsis muaj valence electrons. Raws li nyob rau hauv ib pawg tag nrho cov ntsiab lus muaj tib yam tsis muaj valence electron uas yog vim li cas lawv muaj cov tshuaj zoo sib xws tab sis nyob rau hauv ib lub sij hawm tsis muaj valence electron sib txawv uas yog vim li cas lawv txawv nyob rau hauv chemical zog
Puas muaj kev hloov pauv ntawm lub cev lossis tshuaj lom neeg thaum muaj suab thaj yaj hauv dej?
Dissolving qab zib hauv dej yog ib qho piv txwv ntawm kev hloov lub cev. Nov yog vim li cas: Kev hloov tshuaj lom neeg tsim cov khoom siv tshuaj tshiab. Txhawm rau kom qab zib hauv dej los ua cov tshuaj hloov pauv, ib yam tshiab yuav tsum tau ua. Yog tias koj evaporate cov dej los ntawm cov kua qab zib-dej, koj nyob nraum nrog qab zib