Mapatya anotsanangurwa se "... vechiduku vaviri avo panguva imwe chete vanoberekwa kubva kune imwe amai." ( Encyclopedia Britannica ). Cherechedza kuti tsanangudzo inongoreva chete amai. Asi zvakadini nebaba? Ko mapatya ane mababa akasiyana here?
Mapatya Ane Vana Vakasiyana
Sezvo teknolojia yakagadzirisa kukwana uye kuwanika kwekuongorora mazita, zvakave zvakajeka kuti mapatya anogona kuva nemadzimai maviri akasiyana.
Mamiriro acho anongoshanda chete kuhama ( dizygotic ) mapatya, asina kufanana ( monozygotic ) mapatya, ayo anobva kune rimwe chete / mbeu inosanganiswa. Monozygotic twins haagoni kuva nevana vakasiyana.
Zvisinei, mapatya ehama ndiwo mugumisiro wehuwandu hwehuwandu, kusunungurwa kwemazai akawanda mune imwe chete. Kufungidzirwa kunorondedzera mamiriro ezvinhu apo mazai anokurudzirwa nehumuviri kubva kune zvakasiyana zvekuita zvepabonde. Mune imwe nyaya apo mukadzi anoita zvepabonde nevamwe vakasiyana, mapatya angave akasiyana nevabereki. Izwi rakakodzera kurondedzera iyi mamiriro ekuremekedzwa kweheteropater .
Mienzaniso Yemapatya ane Baba Vakasiyana
Izvi zvinogonawo kuitika kana mapatya ari mugumisiro wemishonga inobereka, somuenzaniso, nyaya yaKoen naTuen Stuart, vakomana veDutch vaive mugumisiro weVF (in vitro fertilization). Muchengetedzo pabazi, zvigadzirwa zvaive zvashandiswa kaviri, zvichiita kuti umwe murume wemurume aiswe pamwe chete nababa.
MuNew Jersey, amai vemapatya vakaedzwa kuedza vana pavakakumbira rubatsiro rwevanhu. Mushure mokunge muongorori wakaratidza kuti mudzimai wake ndiye baba veimwe ramapatya ake, akabvuma kuti akanga aita zvepabonde nemumwe murume mukati mevhiki imwechete iyo mababa ake akaberekwa.
Amai vemapatya muTexas vakabvuma kuti aive nehukama nemumwe murume apo mapatya ake akaberekwa.
Kuongorora kwevabereki kwakaratidza kuti chirikadzi yake chaiyo aiva baba vemumwe wevakomana vaviri, asi kuti mumwe murume aiva baba vezvimwewo mapatya.
Sources:
Baldwin, V. Pathology yeMabatanidzwa Akawanda. Springer Science & Business Media, 2012. Print. p. 13.
Grossman, J. "Heteropaternal Superfecundity: Mutemo Wemubereki Unobatsira Mababa Akasiyana Nababa." Scholarly Commons kuHofstra Law, May 12, 2015.
Mueller, B. "Paternity Case yeNew Jersey Amai Amababa Anobereka Zvibereko Zvisingatarisirwi: Vanababa vaviri." The New York Times, May 7, 2015.