Laʻana o nā Nīnau Kūkākūkā Mitosis
He kaʻina hana mahele cell koʻikoʻi ka Mitosis i nā meaola eukaryotic. ʻAe kēia kaʻina hana i nā cell e hana hou a hāʻawi i nā mea genetic like i kā lākou mau cell kaikamahine. He mea nui ke aʻo ʻana i ka mitosis no nā haumāna biology no ka mea pili loa ia i ka ulu ʻana, ka hoʻomohala ʻana, a me ka hoʻoponopono ʻana o nā ʻiʻo i loko o nā meaola. Ma kēia ʻatikala, e kūkākūkā mākou i kekahi mau pilikia hoʻohālike e pili ana i ka mitosis a me kā lākou mau hoʻonā e hāʻawi i kahi ʻike maikaʻi aʻe o kēia kaʻina hana cellular kumu.
Hoʻolauna i ka Mitosis
Ma mua o ke komo ʻana i nā nīnau hoʻohālike, he mea nui e hoʻomaopopo i nā pae o ka mitosis. Aia ka Mitosis i kekahi mau pae:
1. Profase: Hoʻomaka nā chromosomes e hoʻopili a lilo i mea wehewehe hou aʻe. Nalo aku ka nucleolus, a hoʻomaka ke ʻano o ka mitotic spindle.
2. Prometaphase: Hoʻomaka ka membrane nuklea e wāwahi, e ʻae ana i nā microtubules e launa pū me nā chromosomes.
3. Metaphase: Kū pololei nā chromosome ma ka papa metaphase ma waenakonu o ke kelepona.
4. Anaphase: Huki ʻia nā chromatids kaikuahine i nā pou ʻē aʻe o ke kelepona.
5. Telophase: Hoʻomaka ka membrane nuklea e hana hou a puni nā seti ʻelua o nā chromosomes.
6. Cytokinesis: ʻAʻole kēia he ʻāpana o ka mitosis ponoʻī, akā hana pinepine ʻia me ka telophase, e hoʻokaʻawale ana i ka cytoplasm e hana i ʻelua mau cell kaikamahine.
Nā Nīnau Laʻana a me ke Kūkākūkā
Nīnau 1:
E wehewehe i ke kumu he mea nui ka mitosis no nā meaola multicellular.
Kūkākūkā:
He mea nui ka mitosis i nā meaola multicellular no kekahi mau kumu:
– Ka ulu ʻana: ʻAe ka mitosis i nā meaola e ulu. Ma hope o ka hoʻoulu ʻana, pono ka zygote e māhele like me ka mitotically i nā manawa he nui e hana i kahi ʻano kino piha a paʻakikī.
– Hoʻoponopono a me ka Hoʻoulu Hou ʻana: Ua hōʻino ʻia nā ʻāpana kino i kēlā me kēia lā. ʻAe ʻo Mitosis i nā ʻāpana hou e pani i nā mea i hōʻino ʻia a make paha. No ka laʻana, hoʻoulu hou ʻia ka ʻili a me nā ʻāpana koko ma o ka mitosis.
– Ka Hoʻouluulu ʻAsexual: I kekahi mau meaola, ʻo ka mitosis kekahi ʻano hana hoʻouluulu. No ka laʻana, i nā mea kanu, nā mosses, a me kekahi mau holoholona, e like me ka starfish, ʻae ka mitosis i ka hoʻouluulu ʻasexual ma ka hana ʻana i nā kope genetic o ka makua.
Nīnau 2:
E inoa a wehewehe i ke kaʻina o nā pae i ka mitosis.
Kūkākūkā:
Eia ke kaʻina o nā pae o ka mitosis:
1. Prophase: ʻO kēia pae ka hoʻomaka ʻana o ka mitosis. Hoʻomaka ka Chromatin e hoʻopili i loko o nā chromosomes, kahi e ʻike ʻia ma lalo o kahi microscope. Hoʻokaʻawale nā centrosomes a neʻe i nā pou ʻē aʻe o ke kelepona, e hana ana i nā olonā spindle.
2. Prometaphase: Hoʻopau ka membrane nuklea, e hoʻokuʻu ana i nā chromosomes i loko o ka cytoplasm. Hiki i nā microtubules mai ka spindle mitotic ke hoʻopaʻa i nā kinetochores o nā chromosomes.
3. Metaphase: Hiki nā chromosome i ke kaulike ma ka pā metaphase, kahi kūlana kahi i hoʻonohonoho ʻia ai ko lākou mau kikowaena ma waenakonu o ke kelepona.
4. Anaphase: Hoʻokaʻawale ʻia nā chromatids kaikuahine o kēlā me kēia chromosome, huki ʻia i nā pou ʻē aʻe e nā microtubules spindle.
5. Telophase: Ke kokoke mai nei ke kelepona i ka hopena o ka mitosis. Hoʻomaka ka decondensate o nā chromosomes, a hoʻoponopono hou ʻia ka membrane nuklea a puni kēlā me kēia chromosome ma nā wēlau ʻelua o ke kelepona.
6. Cytokinesis (ma hope o ka telophase): Ka mahele ʻana o ka cytoplasm e alakaʻi ai i ka hoʻokumu ʻia ʻana o ʻelua mau cell kaikamahine kaʻawale.
Nīnau 3:
Pehea ka ʻokoʻa o ka mitosis a me ka meiosis e pili ana i kā lākou hopena hope loa a me nā hana i loko o nā meaola?
Kūkākūkā:
ʻO Mitosis a me meiosis nā kaʻina hana mahele cell like ʻole me nā kumu like ʻole:
– Mitosis:
– Hopena Hope Loa: ʻElua mau pūnaewele kaikamahine i like me ke kelepona makua, loaʻa i kēlā me kēia ka helu like o nā chromosomes me ke kelepona makua (diploid inā he diploid ke kelepona makua).
– Hana: Hoʻohana ʻia no ka ulu ʻana, hoʻoponopono ʻana, a me ka hana hou ʻana o nā ʻiʻo i loko o nā meaola multicellular, a me ka hana hou ʻana i ka asexual i loko o kekahi mau meaola.
– Meiosis:
– Hopena Hope Loa: ʻEhā mau pūnaewele gamete like ʻole, nona kēlā me kēia ka hapalua o ka helu o nā chromosomes o ke kelepona makua (haploid).
- Hana: Ka hana ʻana i nā pūnaewele gamete (sperm a me nā hua manu) no ka hoʻouluulu ʻana i ka moekolohe, e hiki ai ke hoʻohui hou ʻia nā genetics a me nā ʻano like ʻole o nā keiki.
Nīnau 4:
Nānā ʻoe i kahi cell ma lalo o kahi microscope a ʻike i nā chromosomes i hoʻonohonoho ʻia ma waenakonu o ke cell. I loko o ke aha ka pae o ke cell i ka wā mitosis?
Kūkākūkā:
Aia ke kelepona i nānā ʻia i ka metaphase. I kēia pae, kū pololei nā chromosomes āpau ma ka pā metaphase, ke kikowaena o ke kelepona, a he hōʻailona kēia o ka metaphase i ka mitosis.
Nīnau 5:
He aha ka mea e hana ai inā loaʻa kahi hewa i ka wā o ka mitosis?
Kūkākūkā:
Inā loaʻa kahi hewa i ka wā o ka mitosis, hiki iā ia ke hopena i:
– Nā Hoʻololi Hoʻoilina: Hiki i nā hewa i ka mahele ʻana o ka chromosome ke hopena i nā hoʻololi hoʻoilina, hiki ke hoʻopilikia i ka hana o ke kelepona.
– Kanesa: ʻO nā hewa e hoʻoulu ai i ka hoʻonui ʻole ʻia o nā cell hiki ke alakaʻi i ka maʻi kanesa. Hana pinepine kēia i ka wā e hōʻino ʻia ai nā genes e kaohi ana i ke kaʻina hana cell.
– Nā Maʻi a me nā Pilikia: Hiki ke hana ʻia kekahi mau maʻi a me nā maʻi e ka mahele ʻole o nā cell, me nā syndromes like ʻole i hoʻokumu ʻia e ka pālua ʻana a i ʻole ka holoi ʻana o ka chromosome.
Ka hopena
ʻO ka hoʻomaopopo ʻana i ka mitosis he mea nui ia i ka biology ma muli o kona kuleana koʻikoʻi i ka ulu ʻana, ka hoʻoponopono ʻana, a me ka hānau hou ʻana. Ma ka hoʻomaopopo ʻana i nā nīnau ma luna, hiki ke hoʻomaopopo maikaʻi ʻia ka mahele ʻana o ke kelepona ma o ka mitosis. ʻO ke aʻo ʻana i nā pae a pehea e hiki ai i nā hewa i ka wā o ke kaʻina hana ke loaʻa nā hopena koʻikoʻi e hāʻawi i ka ʻike hohonu i ke koʻikoʻi o ka kaohi ʻana o ke kelepona i ke ola. ʻO Mitosis, me kona maʻalahi a me ka paʻakikī, he kumuhana paʻakikī a hoihoi ia no nā haumāna a me nā mea noiʻi i ka biology.
