Best Meiosis Video Ever

[sdseals2076]

I like the fact that the kid was grown and still in elementary school living with his mom before he got the point.

[FirstAct115]

what the fuck holiday?

[crazyforcocoa101]

So helpful! Thank you so much! Got a test tomorrow and this really helped

[waqasdaagh]

thanx



[megacrazyfighter]

God this is an awkward, yet helpful video...

[goetzshane]

this is a really great explanation, thanks to whoever made this video, you're a bro

[SpiritGun666]

Anyone else hear the empty can noise?

[roadrage1441]

Help out a lot thanks

[Wanda7771]

"Without 'crossover pointe"EVOLUTIONcouldn't happen" becauseDNAwouldn't change from parent to offspring.OIC! So that PROVES evolution?!A case for quantum leap.I think I can come up with a different interpretation of crossing over.It prevents genetic disease and causes variety(genetic shuffling)in offspring so everyone's not a twin.GOD planned it that waySo you see? Evolution is only an opinion and a personal interpretation by athiestic scientists.But if you disagree you're ignorant and backward.

[MidnightBizzle]

@Wanda7771 Evolution is a noun meaning the process of growth or development. Every time someone uses the word, it shouldn't automatically cue a theology debate.

If you'd like to debate theology, please lurk theology vids instead of annoying those of us that are here for bio review.

[Wanda7771]

@MidnightBizzle If THAT's all EVOLUTION means, (growth/development)--then it shouldn't be such a hot-button issue now, SHOULD IT?Of course we all know that its much more than that now, DON'T WE?Maybe its all about how ORTHODOXY RULES and anyone who disagrees can take a flying leap, eh?

[xDestroyer2x]

Liked, cause it's so funny

[tareQ654]

skip to 2:38 for human cell meiosis explanation if that is what your looking for. Great explanation by the way.

[ByRecentDesign]

Hydra is not a plant! It is aminal!

[PhilipDanielRubin]

wowowoww... can someone help me out here? when the daughter cells are about to split to 4 new cells, both daughter cells contain 23 chromosomes, why doesn't that number split again when it goes from 2 cells to 4....?

[MidnightBizzle]

@PhilipDanielRubin You start out with 46 chromosomes, 23 from mom, 23 from dad. The first division (forming 2 daughter cells): each pair of homologous chromosomes are split apart. So you are left with 23 chromosomes, which makes it a haploid cell.

However, each of these 23 remaining chromosomes consists of a PAIR of sister chromatids. In the 2nd division, this pair is now split up. So instead of each cell having 23 *pairs* of sister chromatids, each cell will end up with 23 lone chromatids.

[hahr791635]

this was cool ! I liked it thank you for posting =)

[mastildiana]

The little kid from the beggining turned into an adult by the end of the video haha

[YUSTALKINME]

420 likes B) hell yeah!

[BlindBusDrivr]

thank you. These 10 minutes did better for me than 2 weeks of school.

[gxouris1]

Love it haha---good explanation tooo!!!

[alahiap]

lol manchild XD great video though! :] I get it now!

[diyahir]

lol good explination but extremely cheesy, I love it :-)

[Thomazo17]

the explanation is done really well, but let's just say you wouldn't make it to hollywood...

[SilentAssassinC130]

MY BIO TEACHER ACTUALLY OPENED THIS VIDEO IN CLASS, WHILE TAKING A LESSON ABOUT MEIOSIS , AND EVERYONE CRACKED UP XD

[steven13hugs]

lolls

[WakeNBake024]

I'd tell my homework to go fuck itself but I'm afraid it might asexually reproduce =(

[EmilyLightning]

@WakeNBake024 LOL

[rebeccam2]

IT ALL MAKES SENSE NOW

[jfrymanr123]

the chromosomes double and cross over in meiosis I... after their split in meiosis I you have two cells with 46 chromosomes genetically different than the original cell. Meiosis II is the splitting process fron 2n to n.... or from diploid to haploid.

[nubmaster27]

@jfrymanr123 I would double check your notes, after meiosis I the new daughter cells are haploid and only have 23 chromosomes each. The homologous chromosomes split up during meiosis 1. Meiosis II is the process of the cells halving their DNA content, so losing one half of their DNA content when the chromosome splits and the sister chromatids split into two different cells. Does this make sense?

[MidnightBizzle]

@jfrymanr123 Actually, the first division is the splitting process from 2n to n, not the second.

You begin with 46 chromosomes, 1st division yields two daughter cells with 23 chromosomes each, which is a haploid number. The second division simply splits each of these 23 chromosomes into 2 sister chromatids. The total yield is 4 haploid daughter cells with 23 chromatids each.

Going from pairs of chromatids to single chromatids is not the same as going from diploid to haploid

[videoFXking]

I watched this in class lol

[Plaggy22]

well organized! really helped a lot!! Cheers!

[norwedgianawesomenes]

2:10 IT'S KAKUNA! QUICK! HAND OVER THE NEST BALL!

[izemo99]

"How did you get in my house!?"

"HoHoHo I'm a scientist."

Me:*look around...* Go away stalker scientist I Know your out there!

Great vid, btw.

[swimmingtanawan]

That kid wearing the baseball cap sure hit puberty pretty fast

[clarissawantstoeatU]

lol, I have a test tomorrow on this >.< I makes so much more sense in english!

(is in french immersion)

[MrOriginalZach]

MOM I GOT AN A ON MY MEIOSIS QUIZ.

(shows creepy scientist giving thumbs up) my mom is dad.

[BrandonMestnik]

@nubmaster27

Im not sure I agree with this information... Teacher's shouldn't hide inside closets.

[kakalovestrees]

Really great video! Seriously condensed the hours of studying I need to do before my final tomorrow :P

[WolfRunner97]

I just learned more in 8 minutes and 37 seconds than I did in 4 days of classes

[TheTdwpforever]

that test looked like a certificate

[TheHockeyHawk]

note that cells are not haploid until after meiosis II occurs, meiosis I is almost identical to mitosis thus resulting in diploid daughter cells.

[nubmaster27]

@TheHockeyHawk I would recheck your notes, I'm pretty sure that after meiosis I, the cells go from being diploid (2n) to haploid (n) because remember that the homologous chromosomes split up. Ploidy is about the amount of chromosomes you have, not the amount of DNA content.

[Blargshark1231]

@nubmaster27

Not correct. Cells don't become haploid til after Mitosis II. After Mitosis I, two daughter cells, each with 2x the needed compliment of chromosomes (for a sex cell) are produced. It's not until they split again in Meiosis II that four haploid cells are formed.

[Blargshark1231]

@Blargshark1231 Wait, nvm, I'm retarded and not at all correct

[LMacK94]

@nubmaster27 but don't the chromosomes divide again after meiosis 1, meaning that they are still diploid?

[nubmaster27]

@LMacK94 remember that during meiosis 1, the homologous chromosomes split into two new daughter cells. So for example, you've gone from having 23 chromosomes from mom and 23 from dad in one cell, to now two haploid cells that only have 23 chromosomes made up from a combination of dad or mom (it is random how they split up). Think of meiosis 2 as mitosis, so all the chromosomes are doing are splitting up their sister chromatids to 2 new daughter cells. Does that make sense?

[dmcarefuldriver]

@nubmaster27 thanks for explaining this! i wasn't understanding diploid and haploid before

[EDS2314]

horrible actor but amazing teacher

[Bmxer666Xx]

funny and helpfull

[Bmxer666Xx]

funny



[Eli6732]

This is very good Meiosis and Mitosis video clip. Thanks, helps alot...

[hebrux]

anyone else realize how long the explanation was? the kid finally got it when he became an adult ( lol the kid grew up at the end of the vid)

[GalihVSGodzilla]

Best biology lesson i have ever seen in my life!!! Thank you very much to save my biology test! Please make this kind of video again with different topic, this really help alot!!

[phomie10]

@4:56 evolution could and would still occur...

if an advantageous mutation arose in a dna sequence eventually expressed in a gene.

if this mutation resulted in the expression of a beneficial gene which gave an organism GREATER relative fitness compared to wild type organisms with the non-mutant gene, natural selection would favor this mutant gene. evolution.

[musicloverhoney]

Here is my big issue and point of confusion. Why do some of the videos/images I look at and some of the literature point toward the germ cell or "parent" cell in meiosis as having one copy of each chromosome from the mother and father and others show it as two of each? Are the four chromosomes a result of DNA duplication of each of your starting chromosomes (P and M)? For some reason I just can't get anything to clearly state the exact numbers.

[jimbojones091]

Bio project that gets 200k views.

[RedDotAwesomeness]

hey, little tip: the first step of meiosis is not interphase; interphase is a part of the cell cycle, not a part of meiosis. just saying

[MrSniperscope]

8:23 lol

[whatswrongwituguys]

really cool..haha..:D and really helps :)

[oliviasalazar03]

I understand the concept but this is a great review thanks:)

[GriffinWiebel]

Thanks a lot! I love videos that incorporate humor and science!!

[zgarkaPhotoProject]

thanks for the video

this goes right along with my College Bio 1 class

[iwasereb4u]

AWESOME!!!! and by the way cytokinesis is a part of meiosis, if it wasnt then the cell wouldnt split in the first place to create the daughter cells.

[tonychet2s]

cytokinesis is not part of meiosis lol

[WhatTheFuckIsUpDoe]

@tonychet2s yeah it is, fagget.

[SpaceBandit666]

@WhatTheFuckIsUpDoe its faggot, learn how to spell.

[xmadeleinegrace]

@Haxevry1 no, they are two different things. mitosis is replication of non-sex cells, as opposed to meiosis, which is replication of sex cells.

[xmadeleinegrace]

go to 2:23 for meiosis:)

[23zombieking]

Thank you

[OhmgrownCron]

He's Bill Nye, the bow tie?... get it

[likeageeroyy]

this just saved my life and it was funny at the same time!! LOVED IT! ;)

[fairyfaraia]

its excellent and thanx 4 uploading....

[Lianabananaish]

THANK YOU!

[MyPotatomonster]

finally now i can do well in honors bio for now... ty

[GumBreed]

I loled all over...

[fairlyravishing]

So I'm guessing this was a biology project and thank you so much for posting it here! Very helpful! I have a test in a couple of days on it and I feel like I was just enlightened of meiosis. :)

[zoeybrookes101123]

This helped alot thanks but I am confused because my bio book doesn't say anything about cytokinisis or whatever that step is called why is this??????

[nubmaster27]

@zoeybrookes101123 i dont know why your book doesn't say anything about cytokinesis, it may just be refered to as when the cell splits into two cells. sometimes it is thought of as something different than a stage/phase of meiosis but either way it is an important aspect of cell division. does that make sense?

[AlTheNamesWereTaken]

@zoeybrookes101123 They probably didn't mention cytokinesis because its not actually a part of mitosis or meiosis. Cytokinesis occurs after these. It's just basically the division of cytoplasm.

[thehiran007]

@zoeybrookes101123 its because sometimes in some plant cells cytokiinesis 1 doesnt occur but in cytokinesis 2 occurs in every kind of cells

[Camillenob123]

very veeeery helpful! thank you!

[AdesuwaNosa]

Wonderful, I understand meiosis now, thank you

[kolleamm]

really nice video! educational and funny, keep up the good work!

[santashoes]

amazingly enough this actually helped me :P

[betsyhurley]

hahahah i like how the guys grows a beard by the end and looks way older after the explanation haha nice job!

[1misscheerleader]

7th graders have to learn this crap... geez. I'm not a freakin' scientist..

I have an 88.2 though SOOO I guess I'm gonna have to deal with it.

[TanJarin303]

I wish I could come home to my mother and say that :(

[rjaislovee1]

hilarious :) very helpful.

[SemmertJJ]

Seems stupid...but very usefull

[Lnoemi]

.. T.H.A.N.K.Y.O.U,



[JonMillerScuba]

Hydra are animals.

[tsswift40]

@nubmaster27 Oh I'm sorry !!!Do u have some good videos regarding transcription and translation?

[nubmaster27]

@tsswift40 no not yet, anyone out there who would like a transcription translation video, let me know, and i'll make it

[egonred23]

@tsswift40 Yes that would be a great addition

[tsswift40]

He didn't name the further divisions of Pro phase!! Prophase is further divided into * leptotene *Zygotene *Pachytene *diplotene and *Diakinesis!!

[nubmaster27]

@tsswift40 you're right i didn't, thats because this is a high school/basic level explanation of meiosis

[AnotherBrownKid]

good work

[jmpinkboomerang]

17 people confused meiosis with mitosis :/

[solarcradle]

Good work! Thanks

[aznericxD]

lets see if this helps, test tommorow :) ty

[babygirlrox135]

What i dont get is that.. how does Meisosis happen in testicles and overlies. how can 4 sperm cells be created in the testicles when the sperm hasn't been in contact with the maternal set of chromosomes yet ? everything else was explained really well. THANK YOU SO MUCH :)

[nubmaster27]

@babygirlrox135 I can't give you a specific reason for why it happens in the testicles and ovaries over than that those are the humans sexual organs and meiosis makes cells used for reproduction. sperm contains the paternal chromosomal information and is produced and exists in the testicles all the time after puberty regardless of whether it is in contact with maternal (as in the sexual partner) chromosomes. does that make sense?

[gillegan69]

@babygirlrox135 they're talking about the maternal set being the set from your mum, and the paternal set being from your dad, so when your body made its eggs (while you were still in your mum's uterus yourself!!!) it divided the genes you got from mum and the genes you got from your dad, so some of your eggs will have more of your mum's genes, some will have more of your dad's, some will be a total mix-up. Then your genes meet your partner's genes and mix with his mum and dad's genes!!!

[msmarya100]

When did that guy grow a beard?!?! Hahaha!

Good job guys! :)

[agirladrift]

This is pretty cute. Nice job, boys.

[TheIzidorm]

thank you

[xNetushax]

If it weren't for this video, I would not have understood the basic fundamentals of meiosis. Our Malaysian textbooks make it seem sooo complicated (especially the way it is written) and this gave a really brief yet good summary for meiosis. Awesome job! :D

[JoelMhaske]

Justin Bieber studying??!!!



[SReeves337]

Very impressive video and helped me understand this process much better. Thanks

[4444Mii]

This is the best Meiosis video Ever !!

Thank u guys 4 such a marvelous simplified piece !! (:

[F4rl30d]

Dude you really really helped me a lot

thanks men

are you still making videos?

[wtfthu]

The best meiosis video indeed! Thanks for that!

[FNTify]

hahah I was struggling but, the last part of this video was so funny,...

[Shauzia3]

I literally love you so much for this

[AnakinMSMP]

The cienttific guy aproves this video

[rainbowmonkeygirl22]

I have a science exam tomorrow and your video helped a lot thanks!!!!!!! :D

[punksickjordan]

good video guys but of a language barrier with the American and UK terms differing but still a really good video

[Marcosl890]

lol.... good video dude, thanks.

[smart451cab]

Whoa! When did hydra stop being animals??

[ohheyitsroxy]

thank you for pretty much saving my biology grade for my exam tomorrow! :)

[nubmaster27]

@ohheyitsroxy you are totally welcome! good luck!

[NieccieBVDV]

wow...that took a while.....had to write everything down!!! hate science...!! but it helped so much!!

[V4lkz]

There aren't chromosomes dedicated to specific genotypes like hair colour. That stuff is governed by alleles, which are small sections of DNA within the chromosomes. Sister chromosomes (eg, a particular X or the Y chromosome in an individual) have identical sections in which alleles correspond.

Feel free to criticize that but I'm preeeety sure (undergraduate biology student).

[nubmaster27]

@V4lkz you're right about that. this is a high school level explanation, so some of the things are not exactly biologically correct.

[BreakBeatWilNevaDie]

@nubmaster27 Are you saying we are being taught the wrong thing in highschool?

[nubmaster27]

@BreakBeatWilNevaDie nope, in high school they probably want you to know the basics, the finite details are not as important. what i learned in my college course this year was a little different than what i learned in high school, the main difference was less emphasis on what is happening during the phases and more on how many chromosomes there are during the different phases.

hope this helps

[BreakBeatWilNevaDie]

@nubmaster27 thanks for the reply

[no1matt]

@BreakBeatWilNevaDie I believe in schools, due to the difficulty in learning genetics, alot of details arnt taught as they involve more teaching about specific matters. At "senior school" (13-16 years. sorry i dont understand american education systems) we're taught that chomosomes are specific. Or at least they try to imply that so we do not get confused. However at college you learn that most phenotypes are coded for on serveral chomosomes AND THEN they explain it (epistasis, co-dominance etc)

[reconeix]

@V4lkz another small nit-pick is: hair color is a Phenotype, not a Genotype. just a little fyi.

[xXBrokenLocketXx]

@V4lkz Thanks so much, you helped with my homework haha. :)

[borntobedumb2]

thank you!

[darajiunstopped]

thank youuuu!!

[laqwenda]

Awesome video!!!!!!!!! Great Job, it all makes sense now

[LoHeHaPoMaandPr]

...and at 3:19 I'M SEEING 23 chromatids (which i think your're calling chromosomes) which is 46 chromsomes in this Haploid cell???...is this a mistake or is it just me???

[nubmaster27]

@LoHeHaPoMaandPr at 3:19 you are seeing 23 chromosomes and 46 chromatids. in a human hapliod cell, there are 23 chromosomes (as the video mentions) and each chromosome has two chromatids (2 * 23 = 46) which means there are 46 total chromatids in a hapliod cell.

I hope that helps.

[meeshapuppy]

LOL this video actually is the best meiosis video ever :P very impressed and it helped alot! thanks :)

[kristat444]

Thanks for the Amazing breakdown of meiosis! VERY helpful!

[Made4HimAlone]

Wow...very Grrrrrrrrrrrrrrrrrrrrrrrreat explanation!

[rmretherford]

and a part time ninja

[Nerd0042]

'' How did you get in my house?!'' - ''I'm a scientist'' LOL

[TheToeBrand]

HAHAHAHHA, definitly the funniest video explaining meiosis. Thanks, it helped :)

[ladyluvztramp]

Thanks for helping me study for my bio midterm I have tomorrow :D

[syto300]

omg this is sooooooooooooo helpful

[doddleoddle]

LOL

[CommonSense90]

I'm a biology major in college and this video actually helped explain some things. :) ....now that I think of it, maybe I should switch majors..

[fifafoot1]

wow this actually helped me understand

[petree]

its like the explanation took years to give that the boy grew up

[Lydaw]

haha the dude in the beginning is soooo me lol

[scrainbow1234]

This is amazing! It really helped because I have to do a whole oral demonstration in front of my teacher and I had no idea what to do before this video. Thanks! :)

[forevercheerbabie]

Lol, he just came out of the closet! ... We watched this in my biology class, somebody pointed it out, and the entire class, even our teacher, laughed histarically. It was one of the funiest moments on that class! Thanks!

[idontnoapassword]

@forevercheerbabie lol sounds like a boring class. funniest moment today was when we had to make a acronym for the names of meiosis. and 1 kid yells out "people masturbating attracts teenagers.

[popthebubbles4]

the awkwardness of this video helped distract me from the actual material.

[sweetTay624]

this really helps!

[lihiboko]

in minute 2:50 it says: meiosis 2- where the sister chromotides separate

but it's not true.

a diploid cell has 2n chromosomes- 1 from the father  1 from the mother

it's being duplicated and becomes 4n.

(than there's the crossing over stage)

meiosis 1: division into 2 diploid cells (2n)

meiosis 2: division every diploid cell into 2 heploid cells (1n)

there's no division where the chromotides are separated into 2 cells

[oggieoi1]

@lihiboko alright cocky.

[ddongdave]

@lihiboko meiosis 1: homologous pairs line up and separate chromosomes. (2n --> n)

meiosis 2: sister chromatids of each chromosome separate (n-->n)

[Termin8trix]

binary fission doesn't click in 2 seconds, which was how fast that slide changed.

[aznerd999]

better than my bio teacher..

[Aelishify]

my guess it that they changed from a kid to the older guy because kids that age have a hard time not giggling at the word "testicles"