Izici eziphilayo zezinwele namawele
Izingane, ezifana nomunye futhi ezelwe ngekhefu lamaminithi ambalwa, abantu bavame ukubizwa ngokuthi amawele. Futhi izingane zizalwa cishe ngesikhathi esisodwa (futhi ngezinye izikhathi zihamba ngezinsuku eziningana), kodwa ngokungafani nokubonakala okufanayo - zibizwa ngamawele. Uyini umehluko emkhatsini wamawele kusukela ngamawele ngokwemithi, ake sithole.
Ngakho, amawele - lo mcimbi awuyona into engavamile ezinsukwini zethu. Lapho, ngezizathu ezingapheli, amaqanda amabili avuthwe emzimbeni wesifazane, boba bobabili bahlwanyela nge-spermatozoa ehlukene-okubangelwa amawele abafowabo (amawele). I-karapuzy enesethi ehlukile yofuzo, ngakho-ke ihluke komunye nomunye, njengabazalwane nodade abajwayelekile. Ngaphezu kwalokho, amawele angaba ngamacansini ahlukene.
I-Odnoyaytsevye amawele amantombazane, azalwe ngenxa yokuhlukaniswa kweqanda elilodwa elivuthiwe. Kulesi simo, izingane zithola isethi efanayo yama-chromosomes, ngokulandelana, kanye nobulili. I-Crumbs ifana kakhulu nomunye nomunye: banombala owodwa ofanayo kanye ne-hue, umzimba, uhlobo lwegazi.
Ukuhluka okuphakathi kokuthuthukiswa kokukhulelwa okuphindaphindiwe ngamawele afana namabili, uma i-spermatozoa eyodwa noma emibili ikhiqizwa iqanda nomzimba wayo we-polar.
Amawele afana kanjani namawele esibelethweni?
Njengoba sesichazile kakade, umehluko phakathi kwamawele namawele uchazwa ngezindlela ezahlukene zokubunjwa kwe-zygotic. Kodwa, ngisho nangenxa yokuhlukaniswa kweqanda elilodwa futhi abe nesethi efanayo ye-chromosome, ama-twin emantwini omama angathuthuka ngaphansi kwezimo ezahlukene. Isibonelo, ngezinye izikhathi imvuthu kufanele ihlanganyele indawo eyodwa yengane, futhi ngezinye izikhathi isisindo esisodwa. Futhi uma unenhlanhla, wonke umuntu uzothola i-placenta yakhe nesinye. Ngaleso sikhathi, njengoba amawele womfowabo aqinisekisiwe: ngamunye unesisindo somntwana wesisu nesigcawu.
Umehluko omkhulu phakathi kwamawele namawele
Umehluko wangaphandle phakathi kwamawele namawele akuyona into ewukuphela, nakuba icacile. Eqinisweni, izibonakaliso ezihlukanisa onogwaja ofanayo nezifanayo zikhulu kakhulu. Futhi, ezinye zazo zibaluleke kakhulu:
- Ngakho-ke, amawele ayingane yezingane ezifanayo zobulili ezifanayo, ezinezinhlobo ezifanayo zegciwane, iqembu legazi, kanye nephethini ezandleni zabo. Uma kunesidingo, bayakwazi ukukhonzana njengomnikeli. Amawele angama-sexes ahlukile, ahluke ngokuphelele komunye nomunye, ngisho nombala wabo wesikhumba ungahluka.
- Futhi umehluko obalulekile phakathi kwamawele namawele kuyindlela yokuhlela. Ngakho, amawele ayinto engavamile kakhulu, hhayi ngaphansi kwesayensi nemithi. Kungenzeka ukubikezela ukuzalwa kwamawele: ngokuvamile izingane ezinjalo zizalwa emva kokwelashwa kwe-hormonal, ngemuva kokuqeda izisu zomlomo, omama abangaphezu kuka-35, ngenxa ye-IVF.
- Abaningi bakholelwa ukuthi amawele anesimo esifanayo nesimo sengqondo, futhi amawele ahlukile.
Noma kunjalo, ngokuvamile lokhu akunjalo. Kunzima ukubikezela noma yini lapha, kungaba neyokuqala noma yesibili. Ngoba okuningi kuxhomeke ekukhuliseni kwezingane, kanye nobuhlobo babo bomuntu siqu.
Kumele uqaphele ukuthi ezinkathini zokuqala zokukhulelwa kunzima kakhulu ukucacisa uhlobo lokukhulelwa okuningi. Kunzima kakhulu ukubikezela ukuthi ngubani ozozalwa: amawele noma amawele, ezimweni lapho izingane zobulili obufanayo zine-placenta yazo nesigqila. Uma lezi zimvuthu zingezansi zobulili ezihlukile, kuzohlala ziyimfihlakalo kuze kube yilapho abazali bezazi ngokwabo ukuthi bazoba amawele noma amawele afana namabili.