Video: Cov tsev neeg gene tsim li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A tsev neeg gene yog ib txheej ntawm ob peb zoo sib xws noob , tsim los ntawm duplication ntawm ib tus thawj noob , thiab feem ntau nrog cov haujlwm biochemical zoo sib xws. Ib yam li ntawd tsev neeg yog cov noob rau tib neeg hemoglobin subunits; lub kaum noob nyob rau hauv ob pawg ntawm cov chromosomes sib txawv, hu ua α-globin thiab β-globin loci.
Ntawm no, vim li cas cov tsev neeg gene tseem ceeb?
Population genetics txoj kev xav ntawm tus kheej coefficients ntawm noob cov tswv cuab ntawm a tsev neeg gene qhia tau hais tias qhov sib npaug ntawm kev sib txawv los ntawm kev hloov pauv, thiab homogenization los ntawm kev sib txawv tsis sib xws thiab noob conversion, yog tseem ceeb . Tsis tas li ntawd, evolution ntawm cov haujlwm tshiab yog vim noob duplication ua raws li qhov sib txawv.
Tsis tas li ntawd, qhov piv txwv ntawm tsev neeg gene yog dab tsi? Gene tsev neeg : Ib pawg ntawm noob uas muaj feem xyuam rau hauv cov qauv thiab feem ntau hauv kev ua haujlwm. Cov noob hauv a tsev neeg gene yog xeeb leej xeeb ntxwv noob . Rau piv txwv , hemoglobin noob nyob rau ib tsev neeg gene uas yog tsim los ntawm noob duplication thiab divergence.
Yog li ntawd, qhov twg gene yog tsim?
Tag nrho cov ntxiv ntawm noob Nyob rau hauv ib lub cev los yog cell hu ua nws genome, uas tej zaum yuav khaws cia rau ib los yog ntau tshaj chromosomes. Ib chromosome muaj ib qho, ntev heev DNA helix uas ntau txhiab tus noob yog encoded. Lub cheeb tsam ntawm chromosome uas ib qho tshwj xeeb noob nyob yog hu ua nws locus.
Yuav ua li cas gene duplication tshwm sim?
Gene duplication tshwm sim thaum ib daim ntawv luam ntxiv ntawm a noob yog tsim nyob rau hauv lub cev genome . Qee zaum, gene duplication muaj txiaj ntsig zoo rau lub cev thiab tej zaum yuav ua rau muaj kev loj hlob ntawm hom tshiab. Ntau hom keratin hauv lub cev yog qhov tshwm sim ntawm duplications ntawm ib leeg noob.
Pom zoo:
Yuav ua li cas cov tsev neeg ntawm kev ua haujlwm tsis thiab cov lus piav qhia ntawm cov duab cuam tshuam?
Cov tsev neeg muaj nuj nqi yog pab pawg ua haujlwm nrog qhov zoo sib xws uas ua rau lawv yooj yim rau kev teeb tsa thaum koj paub txog kev ua haujlwm ntawm niam txiv, qhov piv txwv yooj yim tshaj plaws ntawm daim ntawv. Ib qho parameter yog qhov sib txawv hauv cov kab zauv dav dav uas siv rau ntawm tus nqi tshwj xeeb txhawm rau tsim ib qho kev sib npaug
Ib qho piv txwv ntawm tsev neeg gene yog dab tsi?
Gene tsev neeg: Ib pawg ntawm cov noob uas muaj feem xyuam nrog cov qauv thiab feem ntau ua haujlwm. Cov noob nyob rau hauv ib tsev neeg gene yog nqis los ntawm cov noob caj noob ces. Piv txwv li, cov noob hemoglobin muaj nyob hauv ib tsev neeg cov noob uas tau tsim los ntawm cov noob duplication thiab sib txawv
Vim li cas tsev neeg yuav siv tus kws pab tswv yim caj ces lawv ua haujlwm li cas?
Cov kws pab tswv yim caj ces ua haujlwm ua ib feem ntawm pab pawg saib xyuas kev noj qab haus huv, muab cov ntaub ntawv thiab kev txhawb nqa rau cov tsev neeg uas cuam tshuam los ntawm lossis muaj kev pheej hmoo ntawm kev mob caj ces. Tshwj xeeb, cov kws pab tswv yim txog caj ces tuaj yeem pab cov tsev neeg kom nkag siab qhov tseem ceeb ntawm cov kab mob caj ces hauv cov ntsiab lus ntawm kab lis kev cai, tus kheej, thiab tsev neeg
Tib neeg ua ntej hloov cov qoob loo li cas cov kws tshawb fawb siv niaj hnub no los hloov cov qoob loo?
Los ntawm cucumbers thiab carrots rau dawb nplej thiab nplej, peb tib neeg tau hloov cov noob ntawm yuav luag txhua yam zaub mov peb noj. Niaj hnub no cov kws tshawb fawb tuaj yeem tsim qhov kev hloov pauv sai sai los ntawm kev xaiv ib lub noob uas yuav ua rau muaj qhov xav tau thiab tso cov noob ncaj qha mus rau hauv chromosome ntawm lub cev
Cov piv txwv ntawm tsev neeg cov kua qaub thiab cov hauv paus yog dab tsi?
Daim ntawv teev cov tsev Bases & Acids Baking Soda. Baking soda yog lub npe nrov rau sodium bicarbonate, paub tshuaj raws li NaHCO3. Diluted Soaps. Tsev neeg Ammonia. Tsev Neeg Vinegar. Citric Acid