Alternation of Generations | Plant Kingdom | Biology | Khan Academy
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- Опубліковано 15 лип 2024
- In this video, we find out what a plant's life really like. Does it have a life cycle like us? Or is it something completely different? If it is, how different is it from ours? Let's check it out.
Timestamps:
00:00 - What is alternation of generations?
02:11 - Life cycle of bryophytes
04:02 - Life cycle of pteridophytes
05:45 - Life cycle of gymnosperms and angiosperms
09:21 - Haplodiplontic, diplontic and haplontic life cycles
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Created by Sulagna Das
Such an amazing explanation! Thank you so much ma'am! :")
This is the best explanation i have found on youtube by far. thank you so much.
Best explanation of alternation of generation
Thankyou😊
Amazing explaination❤
Your video was terrific! Thank you so much :D
Thank youu for this
but in the ncert textbook it is written that dominant photosynthetic phase is the gametophyte
I really appreciate your work. best regards. Mzuzu University, Mw.
So good mam ❤
Superbbbbbbb 😘😘😘😘😘😘😘😘
Pls teach bsc level syllabus 😀
সেরাহ্🎉
I get confused, can someone please clarify? By definition isnt gametophyte and sporophyte referring to a state of being, not an object or piece of the plant? I hear it as being used referring to an piece of the plant in parts of the video and it trips me up, I'm really trying to undersrand this concept
Sporophytes simply means 2n state after fusion of male(n)and female(n) sporophtye is a stage that grows on gametophyte so simply every plant contain two stages gametophtyic(n) and sporophytic(2n)
3:04 why the zygote didn't form embryo!
unsa mana aimong accent ma'am, moral datong sili pwede mo kaon og baka
If gametophytes reproduce by mitosis how does it get different gametes (male and female)?
I think they are two plants,Female plant produce female spores(mega spores) and male plant produce male spores(microspores)
Or as gametophytes have archegonium and anthredium which produce male and female gametes as the fuse they produce zygote
Actullly they divide by mitosis
Then because of syngamy become 2n diploid
you've destroyed my brain🥲🥲just now I've read the topic alternation of generations from my textbook. I was happy that i understood the topic but was a bit confused 🥲🥲now after watching your explanation 😭I forgot everything 😓you're totally a "confusion" See if you're not clear with something just don't do it! don't make student's brain damage. Don't take it a negatively🙄but this is the truth.
honestly, the vid really helped me to understand the topic :))
it was a really good video dont stick the blame on others. if you were not able to understand its not their fault.
try watching videos in your language because your english is clearly not good so you are having a hard time understanding this here. peace .
well, i think her explanation is really good
I got your problem because that happens to me alot you get confused in many things the videos in youtube say another things and book says other. That happens cause you mixed up information or took wrong direction or proceed in wrong manner that not's videos fault.