Video: Cov kab mob germline yog dab tsi?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Hauv biology thiab noob caj noob ces, lub kab mob yog cov pejxeem ntawm ib tug multicellular kab mob hlwb uas dhau ntawm lawv cov khoom siv caj ces mus rau progeny. Cov hlwb ntawm kab mob feem ntau hu ua kab mob hlwb . Piv txwv li, gametes xws li phev los yog qe yog ib feem ntawm cov kab mob.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog qhov txawv ntawm somatic thiab germline hlwb?
Somatic hlwb yog hlwb nws cov khoom siv caj ces tsis tuaj yeem xa mus rau cov neeg tiam tom ntej. Tib neeg cov kab mob germline yog phev los yog qe hlwb , embryo, los yog stem hlwb.
Tom qab ntawd, lo lus nug yog, dab tsi yog germline qia hlwb? Germline Stem Cell . Germline qia hlwb (GSCs) yog lub hauv paus ntawm kev tsim tawm tas li ntawm gametes, phev, thiab qe, muaj peev xwm tsim tau tus ntxhais sib txawv. cell thiab ib tug ntxhais qia cell los ntawm asymmetric self-renewal cell kev faib.
Raws li txoj cai, cov kab mob germline pom nyob qhov twg?
Kab mob hlwb tsuas yog nyob rau hauv lub cov gonads thiab hu ua oogonia hauv poj niam thiab spermatogonia hauv txiv neej. Hauv cov poj niam, lawv pom muaj nyob rau hauv zes qe menyuam thiab hauv txiv neej, hauv cov noob qes.
Vim li cas cov kab mob sib cais?
Kab mob kev cais yog lub cev kev sib cais ntawm kab mob los ntawm cov kab mob somatic. Segregation yog ib qho tseem ceeb vim hais tias ib zaug kab mob Cov kab mob ntawm tes yog cais los ntawm cov kab mob somatic, kev hloov pauv tshwm sim hauv somatic hlwb tsis tuaj yeem tau txais qub txeeg qub teg.
Pom zoo:
Thaum ua qhov tshuaj ntsuam xiav dawb cov kab mob hauv cov kab mob muaj?
Hloov pauv, cov kab dawb dawb tsis tuaj yeem metabolize X-Gal los tsim cov xim xiav, vim tias lawv tsis tsim cov β-galactosidase ua haujlwm tom qab noj plasmid nqa cov DNA tso thiab cuam tshuam cov lacZ α noob. Cov kab mob dawb no muaj cov kab mob recombinant thiab yuav tsum tau xaiv (Daim duab 1)
Cov kab mob chemosynthetic txawv li cas ntawm cov kab mob photosynthetic?
Cov kab mob Photosynthetic yog cov kab mob hauv cov nroj tsuag ntsuab thaum cov kab mob chemosynthetic yog saprophytes ntawm cov khoom noj uas lwj. Lub zog ntawm lub hnub ci yog siv nyob rau hauv cov kab mob photosynthetic whereas nyob rau hauv chemosynthetic kab mob lub zog yog muab los ntawm oxidation ntawm inorganic tshuaj
Dab tsi yog cov cim thiab cov tsos mob ntawm tus mob ruas?
Cov tsos mob ntawm tus mob leprosy qhov tsos ntawm daim tawv nqaij uas sib zog dua li ntawm daim tawv nqaij thiab nyob twj ywm rau lub lis piam los yog hli. thaj ua rau thaj ntawm daim tawv nqaij nrog txo qhov kev xav, xws li kov, mob, thiab kub. cov leeg tsis muaj zog. loog ntawm tes, taw, ceg, thiab caj npab, hu ua "pob looj tes thiab tso tshuaj loog" teeb meem qhov muag
Dab tsi yog kev sib raug zoo ntawm cov kab mob hauv cov khoom noj khoom haus?
Hauv ecology, lub vev xaib zaub mov piav qhia txog kev sib txuas ntawm cov kab mob hauv lub zej zog biotic. Ob lub zog thiab cov as-ham ntws los ntawm lub vev xaib khoom noj, txav mus los ntawm cov kab mob uas lawv tau noj los ntawm cov kab mob saum lawv hauv cov khoom noj khoom haus. Ib txoj hauv kev ntawm lub zog los ntawm lub vev xaib zaub mov hu ua foodchain
Dab tsi yog cov tshuaj tiv thaiv kab mob hauv cov plasmid?
Resistance plasmids los ntawm txhais tau tias muaj ib lossis ntau dua cov tshuaj tiv thaiv kab mob. Lawv nquag nrog cov noob encoding virulence determinants, tshwj xeeb enzymes los yog tsis kam mus rau hnyav hnyav hlau. Ntau hom kev tiv thaiv kab mob feem ntau yog teem rau hauv cov kab ntawv tiv thaiv