He aha ka gamete a me ka zygote: mall hiʻona

Mai keia 'atikala oe, e aʻo i ka gamete. He He kūikawā halepaahao, a hana pololei hana kūikawā. He aha mau mea? E ka hana pū.

He aha ka gamete: Definition

Ma ka olelo Helene, 'ōlelo i ka manawa o ia hoʻi, "wahine" a "kane". Ua hiki ole e oi pololei hoʻoholo kona waiwai. Gamete - he wahine aeea. Ma ke ano maoli, loaʻa nō nāʻano likeʻole o ka mea - i na kanaka a me na wahine.

Ma kekahi hihia gametes i hanaʻia ma ka māheleʻana i ka primordial germ keena. Eia naʻe, kā lākou diploid chromosome huapalapala ua waiho waho. He kumu no ka hoomahuahua i loko o lākou ka helu. Ke kaʻina hana o ka ho okumu ana o ke kane a me ka wahine gametes he nui kaʻokoʻa. Penei, hoʻokahi iniiaiie sperm e hana eha piha aeee hiki hoi ke fertilization. I ka wahine gametes ua hiki loaʻa hoʻokahi wale Kepakailiula.

Ka 'ole o ka hua manu

He aha ka ka gamete o ka wahine kino? He mau ka paa aeea i loaʻa ka kūpono lako o ka mahuaola nui no ka wā e hiki mai kūpono 'ana o ka meaola. Ua i He ua hoʻokōʻia a spherical shape. Ka hua manu Ua hoomalu i loko o kekahi mau leho: ka yolk, a me ka mea owaho no ka aniani moakaka. Kona cytoplasm - ka keia pantry yolk inclusions.

Hiʻona o ke kane germ keena

Ano, e ka mea ke kane gameteʻano o kaʻike. Sperm aeee i mau mea uuku hoohalikeia ai i na hua. O ke kumu ho i ka mea i kane gametes pihaʻi wale ka aaiaoe ike. No ke aha la i ka mea nele o ka mahuaola? Ka nui, e hoike ana i ke kumu no ka wā e hiki mai ana o ke kino, ua like ka hua manu, a i lawa no ia.

Gametes o nā mea kanu a me nā holoholona: mea like a me nä mea

Male gametes o nā holoholona i lawe lima. Sperm aeee i i mai o ekolu māhele: poʻo, ai a me ka huelo. Ka mua kekahi he he nucleus. He He haploid chromosome 'ia paha, a me hookahi. Kēia mall hiʻona mea typical o germ keena. Ke poo o ka sperm acrosome i maupaʻa, a apical kino. Kēia organelle produces he kūikawā'ūhū, i mea hiki no mea hoʻoheheʻeʻia i ka aiiay iwi o ka hua. Ke cervix o na centrioles a me mitochondria. Ka mea, paka i ka ikehu pono ai, e kipaku aku i ka huelo.

Plant kane gametes i kapaia sperm. Ma ka kiekie hua poeikohoia o ke aupuni ka mea, i loko o nā anthers o na stamens. Ka mea, neʻe ma ka makani, nā mea kolo a me kānaka. Ke kaʻina o laila 'o ia i ka stigma o ka pistil kapa pollination.

He aha ka ka gamete o nā mea kanu a me kahi ia o ka moana? Inā mākou e kamaʻilio e pili ana i ka hua manu, ia mea, e like me ka mea kanu, wahi nā hīnaʻi manu'ololaha. Ua Ua Aia ma ka lalo o ka hapa widened o ka pistil pua. I merged gametes, e hoʻoneʻe i ka sperm i mau wahine gamete like germ şarkı ulu. E like me ka hopena o ka fertilization i hana hua.

Ma kiekie ae spore kanu germ keena oʻo i loko o hana kūikawā nā loko - gametangia. Ma kēia mau meaola, he akaka alternation o ka hanauna ia lŘlŘ i loko o ke ola kalapona.

E hoi kakou i kēia kaʻina hana ma ke kumu o mosses. Kona moe hanauna ua poe ma ka lāʻau "moena". Ua ninoieo o ka hookahi leafy mea kanu. Ka mea, i hana a me gametophytes ma i ka oo germ keena. E like me ka hopena, i ke kaʻina hana o ka fertilization, no ka manaʻo o ka mea pono i ka wai, ulu asexual hanauna - sporophyte. Ka mea, i ke ano o ka pahu ma ka ōhāhā maloo. Ua oʻo keena o asexual nā'ōlelo, i ka poe i kaheaia spores. komo lākou i loko o ka lepo, a laila, haawi ala i ka gametophyte. No laila, ke ola kalapona kūlana ma hope kekahi i kekahi.

Ka hopena o ka fertilization

Na fertilized hua manu Ua kapaia ka zygote. Kona chromosome huapalapala mea ua diploid, a papalua. Ma na holoholona, fertilization mea mawaho, a na. Ma ka hihia mua, ka mea, i wahi waho o ka wahine kino. Oia ka iaoia mea typical no ka iʻa a me ka amphibians. A hiki aku ka mea maloko fertilization o ke kane a me ka hoʻohana 'ka copulative nā loko hoʻolauna iā' sperm i loko o ke kino o ka wahine. Ma ia lŘlŘ a fetal? Acaeoey, no laila, i kēia iaoia mea oi e holumua ai.

I mea kanu, o ka loa paʻakikī o gametes merge kaʻina ua malamaia ma ka flowering. Ua Ua kapaʻia ka waʻa, no ka mea, o ka sperm pili ana i ka wahine a me ka gamete kikowaena germ aeea. I ka hopena o ka fetus, ke hoʻokoe nutrient i kapaia o endosperm, a me ka ihi. A pau pu - ka hua.

Ke zygote hoʻomaka e puunaue. Kēia 'ano apau loa o ka embryo. Mua, ka mea, he a kekahi, ahu iho. Ua Ua kapaia ka blastula. Ua laila, hoʻomaka ke kau aku nā'aʻaʻa a me nā loko o ka wā e hiki mai. I loko o kēia wā, ua kapa gastrula. I ka ho okumu ana o ka embryo hoomoe ana ekolu germ papa, a hoʻomōhala, mai kekahi 'nā loko, a nenoai.

No laila, i loko o kēia 'atikala nānā mākou i mea na gametes a me ka zygote. Mau hale a mau na nā moku halihali mokulele o hereditary 'ike a me ka haawi ala i ka hou meaola.