Cross-fertilisation yog dab tsi? … Yog li ntawd, kev cog qoob loo hla mus rau kev lag luam yog txhua yam hais txog ntshuam thiab sib xyaw cov tswv yim los ntawm ntau qhov chaw, kev lag luam lossis tib neeg los tsim cov khoom thiab cov kev pabcuam zoo dua. Kev xa khoom siv thev naus laus zis los ntawm lwm qhov kev lag luam, lossis ntiav neeg los ntawm lwm lub tuam txhab yog cov piv txwv ntawm qhov no.
Kev sib hloov pauv txhais li cas?
Cross-pollination, tseem hu ua heterogamy, hom pollination uas cov phev-laden pollen nplej tau pauv los ntawm lub khob los yog paj ntawm ib tsob ntoo mus rau qe-cov kabmob cones lossis paj ntawm lwm tus.
YYuav ua li cas yog cross-fertilization tus kheej-fertilization?
Kev Fertilization tus kheej yog kev sib koom ua ke ntawm txiv neej thiab poj niam gametes ntawm tib tus neeg. Hla Fertilization yog kev sib xyaw ntawm txiv neej thiab poj niam gametes ntawm cov tib neeg sib txawv ntawm tib hom. Genetic Diversity. Self Fertilization txo cov caj ces muaj ntau haiv neeg. Hla Fertilization ua rau muaj kev sib txawv ntawm caj ces.
fertilization txhais li cas?
Fertilization: txheej txheem ntawm kev sib txuas txiv neej gamete, lossis phev, nrog poj niam gamete, lossis ovum. Cov khoom ntawm fertilization yog cell hu ua zygote.
5 theem ntawm Fertilisation yog dab tsi?
Nyob rau hauv lub ntsiab lus, fertilization tuaj yeem piav raws li cov kauj ruam hauv qab no:
- Sperm Capacitation. …
- Sperm-Zona Pelllucida Binding. …
- Tus Acrosome Reaction.…
- Kev nkag mus ntawm Zona Pellucida. …
- Sperm-Oocyte Binding. …
- Qe Ua kom thiab Cortical Reaction. …
- Zona Reaction. …
- Post-fertilization Events.
