Uyini umehluko?
Umehluko wokuqala phakathi kwe-spermatogenesis ne-ovogenesis yiqiniso lokuthi ngaphezu kwesiteji sokukhiqiza, ukuvuthwa, ukukhula, kunesakhiwo sesine. Kule nkathi lapho amangqamuzana omzimba wesilisa enza i-apparatus yokunyakaza, ngenxa yalokho athola isimo esixubile, esenza ukuhamba kwawo kube lula.
Isici sesibili esihlukile singabizwa ngokuthi isici esesiteji sokuhlukaniswa esivela ku-spermatocyte ye-oda elingu-1, amangqamuzana amane ezocansi atholakala masinyane, futhi isisodwa esisodwa sezinsikazi zokuzala esilungiswa kusukela oocyte sokuqala, esilungele ukukhulelwa.
Uma kuqhathaniswa idatha yezinqubo ezimbili (i-oogenesis ne-spermatogenesis), kufanele futhi kuqaphele ukuthi i-meiosis yamaseli wesini kubesifazane ibonakala ngisho nasesiteji sokuthuthukiswa kwe-intrauterine, i.s. Izinsana zizalwa ngokushesha ngama-oocyte we-oda lokuqala. Ukuqhathaniswa kwabo kuphela kuphela lapho kuqala ukuvuthwa ngokocansi kwentombazane. Nokho, emadodeni, ukwakheka kwe-spermatozoa kwenzeka njalo, phakathi nesikhathi sonke sokukhulelwa.
Olunye umehluko ku-spermatogenesis ne-oogenesis yisici esitholakala emzimbeni wesilisa, kuze kube yizigidi ezingu-30 ze-spermatozoa zakhiwa nsuku zonke,
Kufanele kuphawulwe ukuthi isiteji sokukhiqiza ngesikhathi senqubo ye-spermatogenesis iqhubeka njalo, kuyilapho i-oogenesis iphetha ngokushesha ngemva kokuzalwa.
Ukufingqa lesi sici se-oogenesis ne-spermatogenesis, ngingathanda ukuphawula ukuthi, ngoba ukwakheka kwama-oocyte kuqala ngaphambi kokuzalwa kwentombazane, futhi kuqedela iqanda emva kokukhulelwa, izinto ezilimazayo ezingokwemvelo zingabangela ukungahleleki kwezakhi zofuzo enzalweni .