Video: Cov qe qe ua li cas?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Lub zes qe menyuam tsim cov qe qe , hu ua ova or oocytes. Cov fertilized qe tom qab ntawd txav mus rau lub tsev menyuam, qhov uas lub tsev menyuam hauv plab tau tuab nyob rau hauv cov lus teb rau cov tshuaj hormones ib txwm muaj ntawm kev ua me nyuam. Ib zaug nyob rau hauv lub tsev menyuam, lub fertilized qe tuaj yeem cog rau hauv cov kab mob uterine tuab thiab txuas ntxiv txhim kho.
Yog li ntawd, cov phev thiab qe qe tsim tau li cas?
Gametes yog haploid hlwb , thiab cwb ntawm tes nqa tsuas yog ib daim qauv ntawm txhua tus chromosome. Cov menyuam yaus no hlwb yog ua los ntawm ib hom ntawm tes faib hu ua meiosis. Cov no hlwb txhim kho rau hauv phev los yog ua ov . Cov ua ov paub tab hauv zes qe menyuam ntawm poj niam, thiab phev txhim kho hauv cov noob qes.
yog poj niam lub qe ciaj sia? Phev tuaj yeem nyob sab hauv poj niam cev rau 3 txog 5 hnub. Txawm li cas los xij, tso tawm qe tsuas yog nyob rau 4 txog 12 teev. Qhov siab tshaj plaws cev xeeb tub tau tshaj tawm thaum lub qe thiab cov phev koom ua ke tsis pub dhau 4 txog 6 teev ntawm ovulation.
Ua li no, koj puas tau yug los nrog tag nrho cov qe koj puas yuav muaj?
Cov kev tshawb fawb pom tau qhia cov poj niam rau xyoo ntawd lawv yog yug nrog txhua tus ntawm qe lawv puas yuav muaj . Ntau ntawm cov qe yuav poob ua ntej kev laus ua tiav los ntawm cov txheej txheem ntuj hu ua zes qe menyuam follicle atresia, tawm hauv ib tug poj niam nyob ib ncig ntawm 300,000. qe thaum lub sij hawm puberty.
Poj niam phev hu ua dab tsi?
Poj niam phev tuaj yeem xa mus rau ib qho: A. phev uas muaj ib tug X chromosome, tsim nyob rau hauv ib txwm txoj kev los ntawm ib tug txiv neej, hais txog qhov tshwm sim ntawm xws li ib tug tshwm sim. phev fertilizing qe thiab muab yug rau ib poj niam.
Pom zoo:
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