Ake siqale ngesingeniso sesimiso. I-spermatozoa yesilisa ihlukaniswe yaba izinhlobo ezimbili:
- ngeqoqo le-X chromosomes;
- ngeqoqo lama-chromosomes e-Y.
Amantombazane azalwa ngokuhlanganiswa kwama-X-chromosomes amabili (XX), nabafana abavela ku-X no-Y (XY). Njengoba ungabona, uma unesithakazelo sokuthi ungamkhulela kanjani umfana ngendlela efanele, kufanele uqiniseke ukuthi ukuhamba okuphezulu kunesibeletho se-Y-spermatozoon.
Sizobona ukuthi singakwenza kanjani lokhu.
Phela
I-X-spermatozoa ihlala kuze kube yizinsuku ezingu-5 emvelweni we-acidic wesifazane wesifazane, ihamba kancane futhi ibe namasayizi amakhulu - amathuba okuphila aphakeme ngokucacile. I-Y-spermatozoa ihlala amahora angu-24, amancane futhi asheshe.
Ngakho-ke, ngumuphi umqondo wokukhulelwa umfana, ngokuqonda okungenhla? I-pose kufanele ikhuthaze ukujula okuphezulu kakhulu kwesibeletho, ukuze i-spermatozoa ne-Y isetshenziswe "ukunqoba" umncintiswano ku-X-spermatozoa.
Ukwenza lokhu, zonke izimo zifanelekile, lapho owesifazane evela ngezansi nalapho umuntu angangena khona ubujamo bakhe ngokujulile ngangokunokwenzeka.
Ethandwa kakhulu futhi ihlolwe:
- "Isithunywa sevangeli" siba khona;
- ukuma kwe "stylegy dog" - owesifazane umi phezu kwazo zonke ezine, indoda ingena ngesiswini ngemuva;
- Faka "isipuni" - bobabili abalingani balala eceleni kwabo, lo muntu usuka ngemuva.
Kusukela ekubukeni kwezinto eziphilayo, abesifazane kudingeka baqaphele ukutholakala kokubeletha kwesibeletho :
Uma kukhona ukugoba, thola ukuthi yikuphi ukuqondisa futhi ulale ngakulolu cala ukuze ukhulelwe; Uma umlomo wesibeletho utholakala ngaphezu kwejwayelekile - uzosondela endaweni yokuguqa ngamadolo.
Nini?
Kodwa i-pose ayiyona into eqinisekisayo. Uma ucabangela umbuzo wokuthi kufanele ukhulelwe kanjani umntwana womntwana, qaphela usuku lokulala ngokocansi.
Ukukhulelwa kwabafana kwenza uthando lwamahora angama-24 ngaphambi kokuqala kwe-ovulation namahora angu-12 emva kokuvuthwa.
Nakulokhu, isizathu sisempilweni emfushane ye-Y-spermatozoa, nokulondolozwa isikhathi eside kwe-X-spermatozoon esiswini. Ngaphezu kwalokho, kunconywa okungenani abalingani bezinsuku ezimbili zokuziqeda , ukuze ubulili ngesikhathi sokukhulelwa bekungaphathi kahle i-X-chromosome kusukela ekucansini kobulili obudlule.