He aha te whāū pūira me te aha te tukanga e wahi i roto i te prophase o whāū?

He aha te whāū pūira me te whāiti pūira, me e wā to ratou? Tenei wehenga pūtau, e kua etahi rerekētanga. A, no te hanga e whāiti pūira wha āpiti i te karihi matua i roto i nei te maha heke o pūira (rua). I whāū pūira, puta hoki wehenga pūtau, ko tenei momo e hanga e rua anake ngā pūtau tamahine ki te taua pūira rite te mau metua.

Na he aha te mea te whāū me pūira? Tenei wehenga o ngā tukanga koiora, i roto i nei e hanga e te pūtau ki etahi pūira. Reproduction i te whāū pūira puta i roto i ngā kaiao multicellular, matatini rauropi ora.

atamira

Whāū e wahi i roto i te rua ngā wāhanga:

1. Rearua te mōhiohio i te taumata ira. Here roherohea pūtau whaea i waenganui i te mōhiohio ā-ira. I tenei wā, kua puta ke te pūira.
2. atamira Mitotic. Kei a ia ko wā wā.

puta pūtau hanganga i roto i te maha o ngā wāhanga.

wāhanga

Kei te wehea whāū ki te maha ngā wāhanga:

• telophase;
• anaphase;
• metaphase;
• prophase.

Enei wāhanga tupu i roto i te tetahi raupapa, me whai ratou ake āhuatanga.

I roto i tetahi whāū maha-pūtau matatini maha Ko tā te wehewehenga pūtau o te momo undifferentiated. I whāū pūira te tuwha i te pūtau matua ki te tamaiti, te tikanga e rua o ratou. Ko tētahi o ratou riro te kakau, me te haere tonu te wehenga, me te rua o nga hawhe mutu.

interphase

Interphase - he teuteu pūtau mo te wehenga. Tikanga, puta tenei taahiraa ki e rua tekau haora. I tenei wa, e rere nei i te rota o ngā tukanga rerekē, i roto i nei e rite te pūtau ki whāū.

I roto i tenei wā ki reira ko te wehenga o pūmua, organelles piki nui i roto i te hanganga DNA. Na roto i te mutunga o te wehenga o rāpoi ira e rererua, a kahore e te maha o ngā pūira ke. E kanawa DNA ōrite, me te rua chromatids i roto i te kotahi rāpoi ngota. He ōrite chromatids i hanga a ko te tuahine.

I muri i te otinga o te interphase o whāū haamata mau. Kei a ia ko prophase, metaphase, anaphase me telophase.

prophase

Ko te wāhanga tuatahi o te whāū pūira - prophase reira. pumau te reira e pā ana ki te haora. Kei te conventionally wehea te reira ki te maha ngā wāhanga. I te wāhanga tuatahi i roto i te prophase o whāū nucleolus te nui haere, kia rite ki te hua o nei nga rāpoi ngota e hanga e. Na roto i te mutunga o te wāhanga, tito ia pūira kei o rua chromatids kua. E rewa Nucleoli me membrane karihi, ko nga āhuatanga katoa i roto i te whare herehere i roto i te i takirimatia te. I tua atu, i roto i te prophase o whāū i hanga te achromatin ngangana wehenga wahi e tika ana i te pūtau katoa, me etahi e hono ki te huānga pokapū. I roto i tenei tukanga, e noho tonu te ihirangi o te waehere ira.

E kore e te maha o ngā pūira i roto i te prophase o whāū huri. Eaha te tupu ake? I roto i te prophase o whāū puta mimiti o te kōpaki karihi, i hua i roto i te tōrino puta pūira i roto i te cytoplasm. nofo matūriki o kōpaki karihi hanga vesicles membrane iti.

I roto i te prophase o whāū, puta te whai ake: riro te pūtau kararehe a tawhio noa, engari e kore te reira e taui i te āhua o te tipu.

metaphase

tīmata muri prophase metaphase. I roto i tenei wā, ngā pūira helix tae tona tihi. timata pūira poroa ki te neke ki te pokapū o te pūtau. I roto i te nekehanga, kua whakanohoia e ratou rite i runga i ngā taha e rua. He he pereti metaphase i hanga. A, no te whakaaro e mārama te pūtau pūira kitea. Ko reira i roto i te metaphase e ngāwari ki te tātai ratou.

I muri i te hanganga o ngā pūira metaphase whakaturia o tätari, motuhake ki te momo pūtau. puta tenei i ārai i te pūira te whakamahi i pāhare.

Katoa rauropi he ona huinga ake o pūira. Hei tauira, ratou 20 witi me rōpere i roto i te kari - 56. I roto i te tinana tangata ngā pūira iti iho i nga hua, katoa 46.

anaphase

tukanga katoa i roto i te prophase o whāū pūira mutu me tīmata anaphase. I roto i tenei tukanga, kua pakaru nga hononga katoa pūira me te timata ki te neke i roto i te ritenga atu taha o tetahi ki tetahi. I roto i te pā ana hei motuhake pūira anaphase. whiwhi ratou ki te momo o ngā pūtau.

Wāhanga faaatea pito ki te pūtau amo chromatids. Hoki ko konei te tohatoha o te mōhiohio ā-ira i waenganui i nga āpiti me te pūtau matua.

telophase

E kei pūira i te amo. I raro i te karu, hei ratou uaua ki te kite no te mea i hanga te anga matua e huri noa ratou. Kei te tino ngaro muka.

I roto i te tipu, i hanga te membrane e i roto i te pokapū o te pūtau, ka horahia āta ki te amo. Ko ia te tuwha i te pūtau whaea kia rua nga wahi. Kia te tino tupu te membrane, i reira te mea he taiepa cellulose.

āhuatanga whāū

Cell wehenga taea te frein tika ki pāmahana teitei, te rongo ki tāoke, radiation. I roto i te ako o ngā pūtau mitotic i roto i ngā kaiao multicellular taea te whakamahi paihana e tautāwhi i te whāū i te wā metaphase. Tenei taea te ako taipitopito o pūira, kawe kariotopirovanie.

Whāū i roto i te Ripanga

whakaaro tatou i te wāhanga o te wehewehenga pūtau i roto i te ripanga i raro nei.

Ka taea te kite hoki i te tukanga o kaupae whāū i te tepu.

Whāū pūira i roto i ngā kararehe me ngā otaota

Ka taea te whakaahuatia Āhuatanga o tenei tukanga i roto i te ripanga whakatairite.

Na, whakaaro matou te tukanga o te wehenga pūtau i roto i te kaiao kararehe me ngā tipu, me te ratou āhuatanga me ngā rerekētanga.