Anter
- He aha ka hana kolohe ʻana o nā holoholona?
- Nā pae o ka hoʻoulu kolohe o nā holoholona
- Nā ʻano o ka hoʻoulu kolohe ʻana o nā holoholona
- Nā laʻana o ka hānau kolohe ʻana i nā holoholona
- Ka ʻokoʻa ma waena o ka hānau kolohe a me ka asexual
ʻO nā holoholona, e like me nā meaola, ʻikea a nalo, akā ke hoʻomau nei ke ʻano o ko lākou ʻano. Mahalo kēia i ka hana kope, kekahi o nā hana nui a nā mea ola. Ma loko o ke aupuni holoholona, hiki iā mākou ke loaʻa i ʻelua mau hoʻolālā hānau, hānau hānau a me nā hānau hou ʻana, ʻoi aku ka maʻamau i waena o nā holoholona.
KA hoʻoipoipo kolohe ʻo ia ka hoʻolālā hoʻohua ʻano maʻamau o nā holoholona, ʻoiai hiki i kekahi ke hoʻohua i kahi ʻokoʻa ma o kahi hoʻolālā asexual. No laila, i kēia ʻatikala PeritoAnimal, e wehewehe mākou i ka ʻo ia ka hānau kolohe o nā holoholona.
He aha ka hana kolohe ʻana o nā holoholona?
ʻO ka hānau kolohe ʻana ka papahana hoʻohua ʻae nā holoholona a me nā mea kanu he nui e hoʻoulu i nā mea hou a hoʻomau i ka laha.
ʻO nā ʻano e wehewehe i kēia ʻano hana kope he mau ʻano. ʻO ka mea mua, i ka hānau kolohe pili kekahi mau mea ʻelua, hoʻokahi kāne a hoʻokahi wahine, ʻokoʻa ka hānau hānau asexual, kahi wale nō hoʻokahi. Loaʻa nā ʻāpana ʻelua i ka gonad, nāna e hoʻopuka i nā gametes. ʻO kēia mau gametes nā pūnaewele moe kolohe, nā hua i hana ʻia e nā ovaries i nā wahine a me ka sperm i hua ʻia e nā testes i nā kāne.
Ke hoʻohui pū kekahi hua manu a me ka sperm, hana lākou i zygote. Kāhea ʻia kēia uniona hoʻouluulu. Hiki i ka hoʻomomona ke hana ma loko a ma waho paha o ka holoholona, kaukaʻi ʻia i ka laha. No laila aia ka hoʻouluulu kūwaho, kahi e kipaku aku ai nā wahine a me nā kāne i kā lākou gametes i loko o ka wai wai e hoʻomomona, a aia nō hoʻouluulu kūloko, kahi e hui ai ka sperm me ka hua i loko o ka wahine.
Ma hope o ka hoʻouluulu ʻana, e loaʻa i ka zygote 50% DNA makuahine a me 50% DNA makua kāne, ʻo ia hoʻi, nā keiki i hoʻokumu ʻia e ka hānau kolohe. mea hoʻoili kino mai nā mākua ʻelua.
Nā pae o ka hoʻoulu kolohe o nā holoholona
ʻO ka hana kolohe ʻana i nā holoholona he mau ʻanuʻu he nui, e hoʻomaka ana me ka gametogenesis. Aia kēia hanana i ka hana a me ka hoʻomohala ʻana o nā wahine a me nā kāne gametes i nā gonad wahine a me nā kāne.
Mai nā hunaola germ a ma o kekahi ʻano o ka mahele pūnaewele i ʻike ʻia ʻo meiosis, hana nā wahine a me nā kāne i kā lākou gametes. ʻO ka helu o ka hana a me ke oʻo ʻana o nā gametes e hilinaʻi ʻia ma nā kumu he nui, akā ma ka ʻano a me ka moekolohe o kēlā me kēia.
Ma hope o ka gametogenesis, ʻo ke ʻano o ka hoʻoulu ʻana ka moena. Ma ka hana a nā homoni, e ʻimi nā kānaka o ka hānau makahiki i ka hui o ka wahine ʻē aʻe e male a, ma hope o ka noho aloha ʻana, e loaʻa ka copulate i nā holoholona i loaʻa ka momona o loko. I nā ʻano me ka momona o waho, e hoʻokuʻu ʻia nā gametes i ke kaiapuni no lākou e momona.
Ma hope o ka hoʻouluulu ʻana, ka pae hope loa o ka hānau kolohe ʻana, ka hoʻouluulu, i loko o kahi moʻo o nā hoʻololi mole e ʻae i ka fusion o ka hua moa hua me ka sperm nucleus.
Nā ʻano o ka hoʻoulu kolohe ʻana o nā holoholona
ʻO nā ʻano o ka hana kolohe ʻana i nā holoholona i pili i ka nui o nā gametes e hui pū i ka wā o ka momona. I kēia ala, loaʻa iā mākou ka isogamy, anisogamy a me ka oogamy.
- Ma isogamy hiki ke ʻike ʻokoʻa i ka gamete kāne a wahine paha. Hiki i nā mea ʻelua ke kelepona a paʻa ʻole paha. ʻO ia ka ʻano mua o ka hānau kolohe e hōʻike i ka mōʻaukala o ka evolution, a he ʻano like ia o clamydomonas (algae cell-celled) a me monocystis, kahi ʻano protist. ʻAʻole ia i loko o nā holoholona.
- KA anisogamy ʻo ia ka hoʻohui o nā gametes o nā nui like ʻole. Aia nā ʻokoʻa ma waena o nā kāne a me nā wahine gametes a hiki i nā mea ʻelua ke ʻeleu a neʻe ʻole paha. Ua ʻike ʻia kēia ʻano i ka evolution ma hope o ka isogamy. Hana ʻia i nā fungi, invertebrates kiʻekiʻe a me nā holoholona ʻē aʻe.
- KA ʻoogamy ʻo ia ka fusion o kahi gamete wahine nui a neʻe ʻole me nā gametes kāne liʻiliʻi liʻiliʻi. ʻO ia ka ʻano hope loa o ka hana hou e hōʻike i ka mōʻaukala o ka evolution. ʻO ia ke ʻano o nā limu kiʻekiʻe, ferns, gymnosperms a me nā holoholona kiʻekiʻe e like me vertebrates.
Nā laʻana o ka hānau kolohe ʻana i nā holoholona
Nui a hewahewa nā laʻana o ka hānau kolohe e like me nā ʻano holoholona.
- ʻO ʻoe mammal, e like me nā ʻīlio, chimpanzees, kohola a me nā kānaka, moe kolohe lākou me ka momona o loko a me ka oogamy. ʻO lākou, he mea hoʻohui, nā holoholona hānau, ʻo ia ke kumu e ulu ai kā lākou ulu embryonic i loko o ka kōpū o ka makuahine.
- Ma manu, ʻoiai lākou e hoʻomoe i nā hua manu no ka mea he holoholona oviparous lākou, hahai pū lākou i ka hoʻolālā hānau hānau me ka oogamy.
- ʻO ʻoe nā mea kolo, nā amphibians a me nā iʻa hānau lākou i ka moekolohe, ʻoiai ke ukali nei kekahi mau ʻano i kahi hoʻolālā asexual i kekahi manawa i ko lākou ola. ʻO kekahi he oviparous a ʻo nā mea ʻē aʻe he ovoviviparous, he hapa nui o lākou i nā mea kūwaho kūwaho a he mau mea hoʻomomona kūloko kekahi.
- ʻO ʻoe nā ʻalopaka he hui ākea a ʻano like ʻole lākou o nā holoholona, no laila i kēia pūʻulu hiki ke ʻike i nā hoʻouluulu o loko a me waho a me nā hihia oogamy a me anisogamy. Hiki i kekahi ke hoʻohua i asexually.
Mai poina aia kekahi mau holoholona hermaphrodite, me nā kino hānau a wahine a me nā kāne, akā hiki ke hana ma ke ʻano he wahine a kāne paha i ka wā o ka male ʻana. I kēia hihia, ʻaʻole kūmole ka pilikino.
Ka ʻokoʻa ma waena o ka hānau kolohe a me ka asexual
I kēia manawa ua ʻike ʻoe i nā ʻano o ka hana kolohe ʻana, he mea nui e ʻike he aha ka ʻokoʻa ma waena o ka hoʻihoʻi wahine a me ka asexual. ʻO ka hoʻoulu kino Asexual kahi hoʻolālā hānau e ʻokoʻa i ka hana kolohe ʻana ma nā helu he nui. ʻO ka mea mua ka lōʻihi, i ka hana hou asexual ʻoi aku ka pōkole o ka lōʻihi ma mua o ka hānau kolohe.
ʻO ka helu ʻelua o ka ʻokoʻa, a ʻo ka mea nui loa, ʻo ia ka hopena o ka hana hou asexual i kēlā me kēia mea e like me ka makua ie me ka ʻole o nā loli DNA. kālani. ʻO ka pōkole, i ka hānau kolohe ʻana he ʻelua mau mea, ʻo ia hoʻi, ʻelua mau mea like ʻole. Hoʻopili pū lākou i kahi kolu o ke kanaka me 50% o kēlā me kēia kanaka kāna moʻokūʻauhau. Ma ka ʻaoʻao ʻē aʻe, i ka hana hou asexual reproduction ʻaʻohe hana o nā gametes a ʻo ka hopena he ʻano like ia me kēlā me kēia kanaka, me ka ʻole o ka hoʻomaikaʻi kūlohelohe a nāwaliwali nā keiki.
E ʻike i 15 mau laʻana o nā holoholona hermaphrodite a pehea e hana hou ai i kēia ʻatikala PeritoAnimal.
Inā makemake ʻoe e heluhelu hou aku i nā ʻatikala e like me Ka hānau kolohe o nā holoholona: ʻano a me nā laʻana, Paipai mākou iā ʻoe e komo i kā mākou Curiosities ʻāpana o ka honua holoholona.