Video: Dab tsi txheej txheem tsim haploid gametes rau kev sib deev?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Gametes yog tsim los ntawm ib hom kev faib cell hu ua meiosis, uas tau piav qhia hauv qab no. Cov txheej txheem koj ob gametes sib sau ua ke hu ua fertilization. Kev sib deev koom nrog kev tsim khoom ntawm haploid gametes Los ntawm meiosis, tom qab ntawd los ntawm fertilization thiab tsim ntawm diploid zygote.
Hais txog qhov no, ua li cas haploid gametes tsim?
Gametes yog tsim los ntawm cov txheej txheem ntawm kev faib cell hu ua meiosis. Txoj kev faib ob kauj ruam no ua rau plaub haploid cov ntxhais. Haploid cov hlwb tsuas muaj ib pawg ntawm chromosomes. Thaum lub haploid txiv neej thiab poj niam gametes sib sau ua ke nyob rau hauv ib tug txheej txheem hu ua fertilization, lawv daim ntawv dab tsi hu ua zygote.
Ib yam li ntawd, lub npe ntawm cov txheej txheem uas tsim cov txiv neej gametes yog dab tsi? Spermatogenesis yog tus txheej txheem ntawm txiv neej gamete tsim nyob rau hauv cov tsiaj. Qhov no txheej txheem Kuj tseem muaj meiosis tshwm sim hauv diploid thawj spermatocyte rau tsim tawm lub haploid spermatozoon.
Ib yam li ntawd, nws raug nug, dab tsi txheej txheem tsim gametes?
meiosis. Meiosis yog ib hom kev faib cell uas txo cov chromosomes hauv niam txiv cell los ntawm ib nrab thiab tsim tawm plaub gamete hlwb. Qhov no txheej txheem yog yuav tsum tau tsim tawm qe thiab phev hlwb rau kev sib deev.
Vim li cas haploid hlwb tsim nyog rau kev sib deev?
Cov txheej txheem ntawm meiosis tsim tawm tshwj xeeb cov qe menyuam hu ua gametes, uas muaj ib nrab ntawm cov chromosomes raws li niam txiv cell . Fertilization, lub fusion ntawm haploid gametes los ntawm ob tug neeg, restores tus mob diploid. Yog li, kev sib deev kab mob sib txawv ntawm haploid thiab diploid theem.
Pom zoo:
Cov txheej txheem ntawm kev tsim cov kev daws teeb meem yog dab tsi?
Kev daws yog tsim thaum ib yam khoom hu ua thesolute 'dissolves' rau hauv lwm yam khoom hu ua hnyav.Dissolving yog thaum lub solute tawg los ntawm ib tug loj siv lead ua ntawm molecules mus rau ntau me me los yog ib tug molecules. Lawv ua qhov no los ntawm rub tawm cov ions thiab tom qab ntawd ncig cov ntsev molecules
Dab tsi yog lub tswv yim ntawm kev txhawb nqa ntawm kev sib cais ntawm kev sib deev?
Kev txhawb zog yog cov txheej txheem los ntawm kev xaiv ntuj tsim kom muaj kev sib cais ntawm kev sib deev. Kev txhawb zog tuaj yeem tshwm sim raws li hauv qab no: Thaum ob pawg neeg uas tau khaws cia sib nrug, rov qab los rau hauv kev sib cuag, qhov kev sib cais ntawm cov menyuam yaus yuav ua tiav lossis tsis tiav. Yog tias nws ua tiav, speciation tau tshwm sim
Dab tsi txheej txheem tsim haploid gametes?
Cov txheej txheem uas ua rau haploid gametes hu ua meiosis. Meiosis yog ib hom kev faib cell uas cov chromosomes raug txo los ntawm ib nrab. Nws tshwm sim tsuas yog nyob rau hauv tej yam tshwj xeeb hlwb ntawm ib tug kab mob. Ob lub cell faib hu ua meiosis I thiab meiosis II
Dab tsi yog cov txheej txheem ntawm kev sib txuas monomers los tsim cov saw ntev?
Feem ntau cov roj ntsha molecules loj heev thiab tsim los ntawm kev sib sau me me molecules, los yog monomers, rau hauv cov saw ntev. Cov txheej txheem ntawm kev sib txuas cov monomers, hu ua lub cev qhuav dej condensation, suav nrog kev tshem tawm ob lub atoms hydrogen thiab ib qho oxygen atom los tsim dej
Dab tsi yog txheej txheem spontaneous thiab non-spontaneous txheej txheem?
Cov txheej txheem spontaneous yog ib qho uas tshwm sim yam tsis muaj kev cuam tshuam ntawm sab nraud. Ib txoj kev uas tsis yog tshwm sim yuav tsis tshwm sim yog tias tsis muaj kev cuam tshuam ntawm sab nraud