2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Morula yog tsim nyob rau hauv qaum ntawm oviduct i.e. isthmus. Lub haploid nucleus ntawm cov phev thiab cov ovum fuse ua ke los tsim ib tug diploid zygote.
morula tsim tshwm sim nyob qhov twg?
Ib morula feem ntau yog tsim nyob rau hauv cov hom qe uas muaj me ntsis yolkthiab, yog li ntawd, ua tiav cleavage. Cov blastomeres nyob rau saum npoo ntawm morula ua rau muaj qhov ntxiv-embryonic ntawm lub embryo. Cov hlwb ntawm sab hauv, cov cell loj, tsim mus rau hauv lub embryo kom raug.
Dab tsi yog morula tsim hauv tib neeg?
Morula txhais tau tias yog 16-hlwb uas muaj cov embryo thaum ntxov uas tsim los ntawm zygote los ntawm kev faib mitotic. Nws zoo li lub pob khoom, uas muaj nyob rau hauv zona pellucida (plasma membrane ntawm oocyte). Nyob rau hauv tib neeg, morula yog tsim nyob rau hauv lub fallopian raj, tom qab 3-4 hnub ntawm fertilization.
blastocyst tsim nyob qhov twg?
YBlastocyst, ib theem tshwj xeeb ntawm tus tsiaj embryo. Nws yog ib daim ntawv ntawm blastula uas tsim los ntawm
a berrylike pawg ntawm cov hlwb, lub morula . Ib kab noj hniav tshwm nyob rau hauv lub morula nruab nrab ntawm lub hlwb ntawm lub puab cell loj thiab lub enveloping txheej. Qhov kab noj hniav no puv nrog kua.
morula theem yog dab tsi?
Theem morula yog theem kawg ua ntej tsim cov kua dej puv kab noj hu ua blastocoel kab noj hniav. Thaum cov cavitation tau tshwm sim, peb tuaj yeem pom cov kua dej hauv cov kab noj hniav ntawm cov hlwbthiab peb hu lub embryo thaum ntxov blastocyst.
Pom zoo:
Cov hlwb haploid tsim nyob rau hauv tib neeg nyob qhov twg?
Nyob hauv tib neeg, n=23. Gametes muaj ib nrab ntawm cov chromosomes uas muaj nyob rau hauv ib txwm diploid hlwb ntawm lub cev, uas tseem hu ua somatic hlwb. Haploid gametes yog tsim thaum meiosis, uas yog hom kev faib ntawm tes uas txo cov chromosomes hauv niam txiv diploid cell los ntawm ib nrab.
Kev tsis ncaj ncees nyob qhov twg yog qhov hem rau kev ncaj ncees nyob txhua qhov chaw?
Martin Luther King tau hais tias: “Kev tsis ncaj ncees nyob txhua qhov chaw yog kev hem thawj rau kev ncaj ncees nyob txhua qhov chaw. Peb raug ntes nyob rau hauv ib tug inescapable network ntawm kev sib nrig sib pab, khi nyob rau hauv ib lub tsoos tsho ntawm txoj hmoo.
Qhov twg yog qhov tsis txaus ntseeg nyob qhov twg?
Yuav muaj ob lub cev tsis zoo nyob rau hauv lub midbrain. Lawv yog symmetrically positioned, ib tug nyob rau ntawm ob sab ntawm lub midline ntawm lub hlwb, thiab lawv tsim ob lub pob nyob rau hauv lub posterior nto ntawm lub paj hlwb nyob rau hauv qab ntawm lub superior colliculi.
Qhov twg tag nrho cov nqi hluav taws xob nyob ntawm qhov kev siv nyiaj siab tshaj plaws yog qhov twg?
marginal utility is zero. Tag nrho cov nqi hluav taws xob yog siab tshaj thaum marginal utility yog xoom. Qhov no yog vim muaj ntau txoj cai ntawm kev txo qis marginal utility uas hais tias tus neeg siv khoom noj ntau thiab ntau qhov zoo, qhov ntxiv rau tag nrho cov nqi hluav taws xob poob.
Qhov twg yog qhov tsim qauv tsim?
Hauv software engineering, tsim qauv tsim yog qauv tsim uas cuam tshuam nrog cov khoom tsim cov txheej txheem, sim tsim cov khoom kom haum rau qhov xwm txheej. … Cov qauv tsim tsim yog tsim los ntawm ob lub tswv yim tseem ceeb. Ib qho yog encapsulating kev paub txog qhov twg cov chav kawm ua vaj tse siv.
