Ka rite ki ngā pūtau hou e hanga e na roto i whāū pūira: āhuatanga me te uara tukanga

Ko tētahi o nga ngā o te rongonui ariā pūtau o te hanganga o te tauākī e pā ana ki te ahua o ngā pūtau hou i te pūtake, ie te matua. Otiia ka taea e puta i te reira i roto i ara e rua. Ko tētahi o ratou ko te whāū. Ko faufaa ki te tukanga o te uri o ratou ake ahua ia. E hanga e pūtau i roto i whāū, he aha te mea ratou maha, me ngā āhuatanga o te tukanga - ka tenei katoa e kōrero i roto i te taipitopito i roto i tenei tuhinga.

huringa pūtau

Ko te pūtau o tetahi kaiao taea o ngā i roto i te āputa i waenganui i rua o tona wawahi ranei i te timatanga o te tukanga ki runga ki te kau o te mate. Tenei taahiraa Ko wa, me te huringa pūtau. Kei roto te reira i te takahanga o wehewehe tukanga me etahi wā wa i waenganui ia ratou, e kiia nei ko interphase. I roto i tenei wā te tupu pūtau me te hanganga o ngā matūkai.

Ko tetahi o nga mea tino nui ko te tukanga o te rearua macromolecules DNA. He te whakamunatia te mōhiohio iranga katoa o te pūtau.

Pehea he wehenga pūtau

Ki te whāiti pūira tini parāoa me te ovum. Ko te ngako o tenei tukanga ko te hanganga o tohuhema haploid wha i te pūtau whaea ki te huinga rua o pūira. Hoki tenei take e karangatia ana ko whāiti pūira. Ko te tino nui tenei i te mea i roto i te kikiritanga o ngā pūtau sex, he tinana hou, kei roto te hawhe te mōhiohio iranga i whaea me te papa. Na ko te taea tenei anake i raro i te huru e he haploid nga tohuhema.

E pūtau e hanga e roto i whāū? He diploid te whakahoki ohie, e ko, ki te huinga pūira rua. Ko te faufaa ano hoki tenei tukanga. Ko te mea, ko te e rite ki te hua o te whāū pūira hua pūtau e te hunga i te kape tangohia o te matua. He somatic katoa o ratou.

Ko te wāhanga o te whāū pūira

Ko te tukanga o te hanga hou pūtau somatic ngā maha ngā wāhanga. Ratou roa whānui, i runga i nga momo o kaiao rānei rerekē i te meneti torutoru ki te maha haora.

huaina te wāhanga tuatahi te prophase. I tenei wa i reira ko te miro o pūpūira raungaitinga, whakaiti o nucleoli, mitotic muka hanganga. anga matua saietí tika taka pūira ki te cytoplasm.

huaina te atamira tuarua ko te metaphase. takoto Ko tōna ngako i roto i te hanga o te pūira i roto i te manureva taua, me te āpiti ratou aho muka. aru ana tēnei e anaphase, i te mea te wā tino poto-ora. Ka rite ki te hua o te whāū pūira hua pūtau tamahine tino i hanga. mutu tenei tukanga i roto i te taahiraa telophase. I te pūira ano dispiralized. E tata ratou e kore e kitea i raro i te karu marama. Next, e pā ana ki chromatids tīmata ki te hanga i anga matua, me te wehewehe i muka riro āta.

Kia pehea te maha pūtau i hanga e te whāū pūira

Whāū rite te tikanga o te wehenga o ngā pūtau eukaryotic ko te tino noa i roto i te natura. Ko ïa te mea o tenei tukanga Whakaora o ngaro pakaru ranei wahi o te tinana. Ka rite ki te hua o te whāū pūira e rua ngā pūtau tamahine e hanga e i te matua kotahi. I te wa ano, e tika ana ki te tuaruatia ai o te rāpoi ngota DNA i roto i te interphase o te huringa pūtau, i reira tonu he huinga pūira diploid.

Whāū - te pūtake o ngā momo katoa o te whakaputa uri tōtahi: vegetative - i roto i te tipu, wehenga pūtau kia rua nga wahi - te māmā, maha-ritua - te werau malaria, spore - harore me kaponga, hua - coelenterates.

Ko te hiranga koiora o te whāū pūira

Kua hanga e te pūtau i roto i te whāū ki taua pūira whakaturia rite te matua. Ka rite ki te hua te tukanga o whakawhiti mōhiohio ā-ira, kahore he mea e hia wehenga tūturu o tetahi kawea i roto i. I roto i tenei tukanga noho tonu me te maha o ngā pūira, me te raupapa o nucleotides i roto i ngā rāpoi ngota DNA.

Ko te kupu, kia rite ki te hua o te whāū i te pūtau kotahi i hanga e rua tamahine e tārua tino te taketake. Ka āta whakarite tēnei i te pūmautanga o karyotypes me ko he tikanga matua mō te oraraa o kaiao ora katoa puta noa i te wā o to ratou whanaketanga takitahi me o mua.