Zvinyorwa zvehupenyu zvemawere nemawele
Vana, vakafanana kune mumwe uye vakaberekerwa nekavhisi yemaminitsi mashomanana, vanhu vanowanzonzi mapatya. Uye vacheche vanoberekwa pamwe chete panguva imwe chete (uye dzimwe nguva nekupedza kwemazuva mazhinji), asi zvachose hazvifananidzi zvakafanana - zvinonzi mapatya. Ndeupi musiyano pakati pemapatya kubva pamapatya maererano nemishonga, regai tione.
Saka, mapatya - izvi zvinoshamisa hazviwanzoitiki mumazuva edu. Apo, pane zvikonzero zvisingaverengeki, mazai maviri akaibva mukati memuviri wevakadzi, zvose zvinosungirwa nepepermatozoa yakasiyana - zvichiita kuti mapatya ehama (mapatya). Karapuzy yakadaro yakasiyana yakasiyana-siyana, saka yakasiyana kubva kune mumwe, sehama nehanzvadzi dzakawanda. Mukuwedzera, mapatya anogona kuva emukadzi akasiyana.
Odnoyaytsevye mapatya ndivo vacheche, vakaberekerwa nekuda kwekuparadzaniswa kweii rimwe rinogadzirwa. Muchiitiko ichi, vana vanogamuchira mhando imwechete ye chromosomes, maererano, uye zvepabonde. Zvipukamu zvakafanana zvikuru kune mumwe nemumwe: vane maziso eziso rimwechete uye hue, muviri, neropa.
Kusiyana kwepakati pekudzivirirwa kwehutachiwana hwakawanda mapatya akafanana, apo imwe kana maviri inonzi spermatozoa inogadzirwa neiyo uye muviri wayo wepolisi.
Mapatya anokasiyana sei nemapatya ari mudumbu?
Sezvatave tatsanangura, mutsauko pakati pemapatya nemapatya anotsanangurwa nenzira dzakasiyana dze zygotic maitiro. Asi, kunyange semugumisiro wekuparadzana kwei rimwe uye kuva nechitenderedzwa chakafanana chekromosome, vana vaviri mumakumbo aamai vanokwanisa kukura pasi pemamiriro akasiyana. Semuenzaniso, dzimwe nguva magwenga anofanira kugovera nzvimbo yemwana mumwe, uye dzimwe nguva bhiridha imwe chete. Uye kana iwe uine ruzivo, munhu wose achawana pachepa yake uye chikwata. Panguva iyoyo, semapatya ehama anovimbiswa kuti: mumwe nomumwe ane fetha yekodha uye yepentcenta.
Kusiyana kukuru pakati pemapatya nemawere
Kusiyana kwepakati pakati pemapatya nemapatya hakusi chinhu chete, kunyange chiri pachena. Ichokwadi, zviratidzo zvinokonzera marara akafanana uye akafanana zvakawandisa. Uye, dzimwe dzadzo dzinokosha zvikuru:
- Nokudaro, mapatya ari ezvo-ivo vanoita zvepabonde vana vane gweta rakagadzirirwa, boka reropa, uye muenzaniso pane. Kana zvichidikanwa, vanogona kushandira mumwe semumwe mupi. Mapatya anogona kuva evanhukadzi vakasiyana, zvakasiyana zvachose kubva kune mumwe, kunyange ruvara rweganda rungave rwakasiyana.
- Uyewo musiyano wakakosha pakati pemapatya nemapatya ndiko kukwanisa kuronga. Saka, mapatya ndiwo chinhu chisingawanzoitiki, kwete pasi pesayenzi nemishonga. Zvinokwanisika kufanotaura kuberekwa kwemapatya: kazhinji vana vakadaro vanoberekwa mushure mokurapa kwemahomoni, mushure mokubviswa kwemashoko ekudzivirira pamuviri, mumadzimai anopfuura makumi matatu, zvichienderana neAVF.
- Vakawanda vanotenda kuti mapatya ane chimiro chakafanana uye mutsa, uye mapatya akasiyana.
Zvisinei, kazhinji izvi hazvisi izvo. Izvo zvakaoma kufanotaura chero chinhu pano, pamwe nekutanga kana kuti yechipiri. Nokuti zvakawanda zvinoenderana nekurerwa kwevana, uye hukama hwavo.
Zvakakosha kuziva kuti mumatangiro ekutanga ekudzivirira kunonetsa zvikuru kuziva mamiriro evanhu vakawanda vane pamuviri. Zvinonyanya kuoma kufanotaura kuti ndiani achaberekwa: mapatya kana mapatya, mumamiriro ezvinhu apo vana vanoita zvepabonde imwechete vane nzvimbo yavo pachavo uye chikwata. Kana zvidimbu zvive zvevakadzi vakasiyana, zvinoramba zvisinganzwisiswi kusvikira vabereki ivo pachavo kana vachizova mapatya kana mapatya akafanana.