Lub qe qe uas tshwm sim los ntawm meiosis muaj feem ntau ntawm cov cytoplasm, cov as-ham, thiab organelles. … Ceeb toom tsuas yog ib lub qe loj, lossis qe, cov ntaub ntawv thaum lub sij hawm meiosis los ntawm thawj oocyte. Peb lub cev polar tuaj yeem tsim thaum lub sijhawm oogenesis. Cov cev polar no yuav tsis tsim gametes paub tab.
3 theem ntawm oogenesis yog dab tsi?
Oogenesis suav nrog peb theem tseem ceeb: proliferation, loj hlob, thiab maturation, thaum lub sij hawm PGCs nce mus rau thawj oocytes, theem nrab oocytes, thiab ces mus rau mature ootids [1].
Yuav ua li cas hauv qe qe thaum lub sij hawm oogenesis?
Oogenesis tshwm sim nyob rau hauv txheej txheej sab nraud ntawm zes qe menyuam. Raws li nrog sperm ntau lawm, oogenesis pib nrog cov kab mob cell , hu ua oogonium (plural: oogonia), tab sis qhov no cell nkag mus rau mitosis kom nce tus naj npawb, nws thiaj li ua rau muaj txog li ib mus rau ob lab cells hauv embryo.
Puas muaj pes tsawg lub qe ua haujlwm tau tsim thaum ib lub qe kab mob ua rau oogenesis?
Spermatogenesis tshwm sim hauv ib lub cell phev laus, whereas oogenesis ua rau plaub qe qe laus.
Puas muaj pes tsawg gametes raug tsim thaum lub sij hawm oogenesis?
Nyob hauv txiv neej, kev tsim cov phev laus, lossis cov spermatogenesis, ua rau plaub lub haploid gametes, whereas, nyob rau hauv cov poj niam, zus tau tej cov qe ntawm mature, oogenesis, ua rau tsuas yog ib qho. lausgamete.
