Cov kab mob germline yog dab tsi?
Cov kab mob germline yog dab tsi?

Video: Cov kab mob germline yog dab tsi?

Video: Cov kab mob germline yog dab tsi?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

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.

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