MEIOSIS

[ytrydf159]

any blackops fans around here

[flibbo92]

Very good, simple and clear video. Thank you

[praewlovemon1]

I like it !!

Thank you very much.

[KatsMakeup]

Im confused. whats the difference between meiosis and mitosis? D:

[ghostovadose]

@KatsMakeup ones with sex cells

[Dylman2020]

science sucks ass

[foifoif]

plants produce their gametes by meiosis .... mitosis is only for cellular reproduction and bacteria

[davidzlocker]

@foifoif bacteria undergo binary fission, not mitosis per say

[TheEyesOfNye]

1:30

??

[SexyNeverLeft69]

I thought that plants produce their gametes by MITOSIS, anyone?!??!

[lospepes14]

They do, its the opposite for plants. Am not sure how it works since i don't know too much bio but you are right.

[ohjayhawk4]

Actually they don't, because if they did, the resulting offspring would have twice as many chromosomes as the parents, and the offspring would not survive

[deepwatermelonful]

random assortment

[mkevin526]

@eetnikk i think that's what he said

[godzac]

Chemistry controls biology.

Physics controls chemistry.

Nothing controls physics

[IceCreamFromTheBox]

Maths. :D

[Saktoth]

@godzac

Mathematics controls physics!

[lilfil360]

not very detailed

[mrmagic112233]

I must say that Dr Nguyen Thanh Cong has the most crystal clear english i have ever heard

[zcheeseolly]

You obviously don't get out much then.

[ivault3]

@mrmagic112233 or maybe he was born in america...

[Victorspenis]

NEW RESEARCH HAS PROVEN THAT THE MICROTUBLES DONT PULL THE CHROMOSOMES THEY JUST ACT AS A PATH FOR THE CHROMOSOMES!!!

this is kinda old but stil very good!

[synthapete]

Framework.

[7410n0]

Where did you hear that? Can you give me a link?

[1223Melo]

@Victorspenis That's weird.

[Krishnaroks]

its all for snoo snoo

[naseralnowais]

something bothers me, the nucleulus and the chromosomes were separated but what happen to the rest of the organelles of the cell?

[Myykello]

I've been wondering that too :/

[smigme29]

the organelles grow rapidly and are duplicated during the interphase. during cytokinesis, the organelles and cytoplasm are divided and split into the two different cells.

[PinkNoodel]

Why would you hate a subject about us? Hmmm.... O.o

[NasrAlexandria1989]

good

[jennah1300]

this is by far the best post i have found regarding meiosis. thank you very much, made things much clearer

[didiyanto1994]

i dont get why it has to be four st the end...

why cant it be only two?

sorry, im twelve, n i got science test tomorrow..

[Deat401]

Best video of meiosis yet. Has all the steps and explained slowly and carefully. Great work and thx :)

[Ellielikesdragons]

i'm doing genetics at college and i find it facinating. can you tell me how many of the four cells with 1/2 the DNA become gametes and what becomes of the ones that don't? My lecturer was kind stumped on this question as we are only being taught the basics, but i wanna know more. Thanks for the video :)

[tenth36]

I could be wrong, but my Biology book says that in males the 4 haploid cells which resulted from 1 diploid nuclei, will mature into 4 sperm cells. In females, only 1 of the 4 haploid cells will mature into an egg.

Again, I could be wrong, but I hope this helps.

[cheesecayke]

No, you're right. Only 1 haploid cell matures into an egg because there isn't enough cytoplasm for the other three.

[cheyaaaxx98]

its 1 haploid cell and 3 polar bodies. the three polar bodies disintegrate and the 1 haploid becomes an egg

[mikevitoroulis]

The other 3 haploids produced by the female are polar bodies.

[davesr25]

Thank you all for sharing your knowledge

[yazzz1990]

this is a good video .. very easy to understand!

[CodyLovingLife]

and uhh. all this came from lighting and mud?

[effinretards]

stfu

[thenameissomething]

no its all by chance...just like my computer evolved after a trillion years...lol. I agree, its BS that it happens by itself.

[VoteNixon2008]

Once you get replicating DNA bases inside something(Either A lipid bilayer or protein capsule) Then whatever "progress" in making more proteins can be conserved.

It goes like this(This is very simplified)

amino acids + sugar+ phosphorus=DNA

The Miller-uhrey experiment showed how amino acids can be formed from simple materials and in turn proteins can assemble from these.

If some DNA in any order assembled and DNA replicating proteins came upon the DNA, the DNA sequence would be replicated.

[josesonrockero]

sta chido st video

[Aberger789]

thank you!!

[Yuna40]

This is incorrect, centriols are multiplicated at the beguining of the Prophase I

[BradE17]

the fact that you said "multiplicated" makes me not believe you....

[Yuna40]

Te quiero ver yo contestandome en español cuando no tienes ni jodida idea de ingles so cabronazo

[BradE17]

sorry, i didn't understand half of that....(soy perezoso en mis clases espanoles....)

[mmvideos]

multiplicated?

[bigtables]

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[potpen10]

thx i got a big test and some of the questions are on meiosis and i needed help!

[Psion14]

wait. isn't this Mitosis??????

[Lebanon9999]

no its meiosis

[Psion14]

no it says Meiosis, but it sounds a hell of a lot like mitosis

[123lolnono]

there are 2 pairs of homologous pairs or whatever their called which means this is definatly meiosis, the second steps (anaphase ||) and others , it acts like mitosis, but is realyy the second steps of meiosis. u can also tell because this is a sex cell deviding

[blaziken8]

ok mitosis makes body cell meiosis make sex cell there alot of different of them they sound same but they dont

[BradE17]

Mitosis produces two diploid cells...Meiosis occurs in sex cells and produces 4 haploid cells....

[amm258]

boleh tahan r..

[runs4slic]

d best so far

[gohar06]

nice work doc!

[priorityappraisals]

kham phuc mot nha khoa hoc !

[Phronesis7]

Thanks for this!

[mysteryer]

very informative.This vid aids me in understanding the process of meiosis..thanks alot!

[afroblitz]

thanks!

[Ella3377]

omg you saved my life

[Tatyaninha]

very cool! you have done a good work! Thanks

[thakude]

thanks ...

[juliexken]

informative .... thanks

[sgtuglyman]

very helpful