Nāʻano o ka papa hālāwai
ʻO nā pūpiki male, ma ka hoʻohālikelikeʻana me ka maʻamau, paʻakikī, he nui nāʻano likeʻole. ʻO ka mea nui loa o kēia mau mea he haplo o nā chromosomes, kahi e kū pololei ana i ka'ōnaehana o nā pūnaewele pūnaewele. ʻO kēia ke hōʻoiaʻana i ka hana houʻana i ka piko o kekahi seto diploid o nā chromosomes no ke kino,ʻo ia hoʻi. ka hapalua o ka makuahine, ka hapa o ka makua kāne.
Hoʻokaʻawaleʻia nā'ahamele mai kekahi mau pūnaewele'ē aʻe ma kahi pilina'ē aʻe ma waena o ka pūpū a me ka cytoplasm. Eia kekahi, i ka spermatozoa,ʻoi aku kona kiʻekiʻe ma mua o nā oocytes. ʻO ke kumu nui kēia ma keʻano heʻano liʻiliʻi ka spermatozoa i ka nui o ka cytoplasm, ke hoʻohālikelike me ka'ōpiopio, a he nui ka nui o ia mea me nā meaʻai no ka hoʻolālāʻana o ke kōpipō.
Eia kekahi, me ka likeʻole o nā puʻupuʻu liʻiliʻi, uaʻikeʻia nā pūnaewele male ma kahi haʻahaʻa haʻahaʻa o nā hana hana kūmole.
He aha nāʻoihana o nā pūnaewele kāne kāne?
ʻO ke kumu nui, aʻo ka meaʻoi aku paha o ka spermatozoa,ʻo ia ka mea i hānau. ʻO Sperm, me ka huiʻana me ka hua manu, e hōʻike iā lākou me kā lākou hapalā o nā chromosomes, kahi kūpono no ka hoʻolālāʻana o ke kūpoko.
He aha nāʻoihana o nā pūnaewele hui wahine?
I ka hoʻohālikelikeʻana me ka pūkolohe kāne kāne male,ʻo kāna mau hana ma ka uluʻana o ka huapū a me ka hoʻolakoʻana o nā kinano i loko o ia mea,ʻo nā puʻupaʻa hānau wahine ke kuleana nui i ka hoʻoholoʻana.
No laila,ʻo ka hua e hoʻolako i ka'ōpiopio me nā meaʻai i ka wā e hiki mai ana, e hoʻokō ana i ka hana pāpale,ʻoiai,ʻo ka hua manu i mua o ka hoʻokumuʻiaʻana o ka zygote kekahi hana hoʻomalu.