Ngatitangei nekutaura kwemaatoriki. Murume spermatozoa akaparadzaniswa kuva marudzi maviri:
- necheti ye X chromosomes;
- necheti yei chromosomes Y.
Vasikana vanoberekwa kubva mukubatanidzwa kweX-chromosomes (XX), uye vakomana kubva mukubatanidzwa kwe X uye Y (XY). Sezvaunogona kuona, kana iwe uchida kuziva kuti ungaita sei mukomana zvakarurama, unofanirwa kuva nechokwadi chekuenda kusvika pachibereko cheY-spermatozoon.
Tichaona kuti tingaita sei izvi.
Pose
X-spermatozoa inorarama kusvika mumazuva mashanu mumamiriro e-acidic emudzimai wemukadzi, inononoka kufamba uye ine hukuru hukuru-mikana yekupona inonyatsove yakakwirira. Y-spermatozoa inorarama maawa makumi maviri nemaviri, iwo maduku uye anokurumidza.
Saka, mumamiriro api ezvinhu kumubata mukomana, nekunzwisisa kwepamusoro? Iko inofanira kunge inokurudzira kuwedzerwa kwemajeri pedyo nechiberekero, kuitira kuti spermatozoa ne Y se "won" mumhanyi mu X-spermatozoa.
Kuti uite izvi, zvose zvinoita zvakakodzera, apo mukadzi anobva pasi uye apo munhu anogona kupinda muchirwere chake zvakadzama sezvazvinogona.
Inonyanya kuzivikanwa uye yakaedzwa:
- "Mumishinari" pose;
- mamiriro e "maitiro" - mukadzi anomira pamativi mana, murume anopinda mumukadzi kubva kumashure;
- kuisa "spoon" - vose vakaroorana vanotsigira parutivi rwavo, murume anobva kumashure.
Kubva pakuona kwehutano hwepanyama, vakadzi vanofanira kubhadhara kune zvakakosha kuvapo kwekuputika kwechibereko :
kana paine bhendi, sarudza kuti ndeipi nzira uye ureve kune iyi nechekuita pamuviri; Kana chivharocho chiripo pamusoro pezvaiwanzoita - iwe uchasvika pamabvi-gorosi nzvimbo.
When?
Asi iyo pose haisi kuvimbiswa zvachose. Paunokurukura mubvunzo wekuti unganyatsoita sei mwana mucheche, teerera zuva rekuita zvepabonde.
Nokuti pamuviri wevakomana vanoita rudo maawa makumi maviri nemaviri vasati vatanga mavhiriki uye maawa gumi nemaviri mushure mekuvhara.
Zvakare, chikonzero chiri muhupenyu hupfupi hweY-spermatozoa, uye kuchengetedzwa kwenguva refu kwe X-spermatozoon mumudzimai. Mukuwedzera, zvinokurudzirwa kusanganisa mazuva maviri ekudzivisa kubatana, kuitira kuti mhandara panguva yekubata haina kuitika X-chromosome kubva pane zvepabonde zvekare zvekare.