to help you not get confused centroSOME => Spindles at the poles centroMERE => Middle of the chromatids

Some help with this: Prophase: Prepare Metaphase: Middle Anaphase: Apart Telophase: Two

you honestly teach me more than my teacher, such a lifesaver

Why are people disliking his videos. It's accurate and you get a visual example. 108 dislikers probably just don't care for education.

i cant stress enough how much khan academy actually helps me understand content that i never seem to understand from any of my teachers. thank you so much!!

"Pass Me A Taco" stand for Prophase Metaphase Anaphase Telophase in order

It's fantastic I'm paying my college to teach me and I'm not being taught but I come here and learn and it's free! But I just want to thank you to everyone in khan academy for making the lives of students easier and being so readily available. My appreciation is beyond words. Thank you so much!!!

Man, I wish the teachers were this good at explaining.

Wait 'till I tell my parents that a youtube video is more effective than a private education.

I love wasting my time going to school when I learn more and better from these videos. Thanks for actually being a good teacher!

Khan my old friend, I have missed your voice, the new members of your crew are amazing too, but damn.. how I miss the founding father Professor Khan himself! Have a blessed Saturday mate!!!

I remember watching this guy when this guy wasn't known. I was in 6th grade. Now I'm in college and Sal has just done incredible. Very proud for what he is doing.

He got so sick of drawing towards the end lol I feel yah

you saved me in my embryology class! a whole medical library couldnt explain these processes as well as you did!!

Test in two hours. Thanks for being my study buddy. :)

dude, you saved my grade BIG time. I am no longer hopeless, thank you!!

I'm really watching a video from 2009 right now

He is kinda cute, especially when he gets confused with the centromeres and the centrosomes ! Good video!

Oh my god THANK YOU I am here cramming for a big test tomorrow and a light bulb just lit up in my head because of this video

This is how I'm passing my final tomorrow. My teacher taught me nothing this semester

Saved me on the sexual reproduction, mitosis, and meiosis part of the Biology exam. THANKS! Now I need to cram a whole lot more. I hope I find all I need onyour channel.

Me here after 11years....👁️👁️

khan acadamy has been such a help with studying for my bio final

CORRECTION:@1:46 It should be 46 chromosomes instead of 43. Thank you

You speak with flare and passion for each subject that you make these videos for, thats what really makes you stand out to any other teacher in the classroom or on youtube. I'm halfway through the video, and motivated and entertained for the test that I have tomorrow. Things are really clear to me now, thanks to you.

watching from the quarantine. my bio professor doesn’t even do video lectures. thanks, man \m/

I couldn't believe I ran into something like this on YT, I stared at my book for 4 hours straight trying to find the solid difference between Mitosis and Meiosis and nothing put it into these simple words and diagrams to follow. Thanks a million!

I was hoping for the sub phases in prophase 1

You don't know how much you've helped me by explaining this topic ! I really was having a hard time getting this but after viewing this video 2-3 times, I think I'll do great in the exams! Thank you!

Nice video. The good thing about his videos is I can practice my English a lot and at the same time I'm learning a lot of useful stuff like math, biology, history, etc. Thanks internet!

His teaching ability is so extraordinary, and that this is such a complex matter and his teaching is in a way that is so understandable. “This short little green guy” and “this purple guy. Thank you so much for the help

This video (despite it being messy) is MUCH better than the "newer and better version." It is also a GREAT video and it really helps to understand the chromosomes and chromatids during meiosis. Thank you!

great video, very helpful. There is one question I have. During your first overview of the difference between mitosis and meiosis (during approx. 2:35) shouldn't in Meiosis ,after the M1 stage, there be two diploid cells? These two diploid cells would then split to haploid cells? thanks, -kid attempting to pass his test tomorrow

Thank you so much for this. I am about to take the NMAT this November. I took up engineering when I was in college, and I think this channel of yours would really help me a lot as I go to med school. So, thank you so much for your help!

Fell asleep during my bio class, have a test on this tomorrow, thought I would fail, but not anymore. Thanks very much!!

If only teachers in school were evaluated on a standard like yours. Thanks so much!

KEY TERMS: 1.Homologous chromosomes 2. Prophase, Metaphase, Anaphase, Telophase 3. Natural variation 4. Crossing-over 5. Centrosome

he tried to write "chromatin" but instead wrote "Ehauf"

Now I finally understand the recombination process and where did the term "tetrids" come from, this video was really helpful; thank you very much!

If I'm not mistaken, at 18:47 you start calling the centrosome the centromere lol, which confused me for a second, but because you did such an excellent job teaching Mitosis and Meiosis I, I was able to recognize what you actually meant, which is a sign of a great teaching ability. Thanks for the great video Edit: I see you eventually caught and corrected yourself, and I am now so proud of myself for recognizing they were centrosomes all along xD

thank you so much! you have no idea just how much this helped me :) please keep making these amazing videos!

Excellent explanation......thanks

YOU ARE THE BIOLOGY WHISPERER!!! I LOVE YOU AND IVE NEVR MET YOU!!! Thank you SOSOSOSOSOS much! You've helped me tremendously Khan Academy GOD BLESS YOU AND YOUR BRAIN!!!

you are one of the best online teacher i have ever seen .... thank u for helping me prepare for my test

"Memorize the conceptio- the concept here, for testing" Hahaha, I see what you did there... :3

Very helpful thanks! :)

Khan academy, I have followed your videos for about a year now and it has helped me so much. I have a first year BSc undergrad exam in a few days and your teaching is the best by far. You've got it spot on. Amazing! Thank you for your help. I'm confident of passing (touch wood). You correct your mistakes as you go showing how easy it is to do, you use simplistic language, its easy to the eye and ear and I think some people like to have a moan for moan's sake. Impossible not to learn from the net

you are the khan academy. keep up the work.and I wish to see lot more videos and sucess for you

Why can't you just be my teacher?!!!

good job 👏👏😁

thanks so much this video totally helped me out! This video is the best one here by far. I have been stuck for 3 days trying to figure out meiosis and your video clarified 100% all my confusion. God bless you for all your videos.

I love Khan and seriously rely on these videos for all of my Bio classes including Microbiology, Anatomy and Physiology 1 & 2. I gave the video a thumbs up (of course) but I noticed for these last couple of videos on Meiosis or Mitosis, the narrator is speeding through everything and making errors in the process. I'm using the video as a reinforcement tool, but I find myself correcting centrosome and centromere the entire time. Slowwww downnnn!

This was a well done explanation of the phases of meiosis, but the speaker sounds a bit confused and doing so you confused me on some of the parts as well such the explanation of the "Interphase" the speaker drew the chromosome in the shape it would potentially be in the "Prophase1".The speaker should have explaining as it is.

But still it was a gr8 vid

I learned more watching this video than studying! I'll ace my exam tomorrow

Dude, you literally saved my life. I did shit all in biology last year and you basically taught me the whole course the night before and I knew it all in the exam. #winning

is t just me or does he keep calling centrosomes centromeres?

why are there 66 dislike????????????

Very thorough. Thank you so much. I have a test tomorrow. You explained it better than my teacher. 🤣

the way he's confused with the centrosomes and centromeres reminds me how this is very normal. I was like thank god im not alone

thanks for confusing me with centromeres and centrosomes

As-Biology tomorrow afternoon -_-

OMG that was a huggeee help!!! Thank you sooo much!! And thanks so much for the subtitles too!! You know, for Asians like me who don't really get others' accents quite well!! Wow... thanks thanks thanks!!

Wow thank you for the video. Watching this video along with reviewing my class notes has helped a lot.

😒😠 I have to watch this for school its so boring

The only problem is you waste a lot of time in diagrams

I have to thank you so much. I learned more watching your videos in an hour than what I did in the last two weeks in the class. All the information you talked about was on the test and I got an A. Thanks for your help!!!

Wow. I haven't understood meiosis since it was introduced to me in the 7th grade but now I do. Thank you so so much for this.

you should be in the guinness book of world records. The man who know everything

this video is easy to understand.. saved me in my genetics class... :)

I'm a visual learner and it always help to watch your vids when I'm confuse on things...big thanks to you!!!!

You're the second most intelligent Khan I can think of! (The first being a genetically engineered villain that faced off against James T. Kirk and the crew of the USS Enterprise! Even then I'm still unsure unsure on who's at the top!)

You are the only hope i have to passing this class, and i'm actually doing well!!!! THANK YOUUU.

Thoroughly enjoyed this, very educational and helpful!

The best thing that happened to me in my educational life if finding Khan Academy

This video was extremely helpful. Thank you!

I think the only way we can thank you for these great educational videos is supporting you with our donations. Thanks for all you are doing, I can't appreciate you enough

I wanna know that from class 8 but neither my theachers nor any KZfaq’s Videos clearly portrait that without khan Academy, thanks Khan academy for give our quality education

Thank you so much! You literally saved my life ( and grades ). Such a great video

i honestly dont know if teaching biology can get any better than this! fab!

That video was amazing I totally understand this more then I ever did I think I can teach it now.

Thank you !! That helped alott!! :)

Also, I found a great way to summarize this whole interphase thing... G1- Everything except chromosomes are duplicated. S- Each of the 46 chromosomes is duplicated by the cell. G2- Short check phase for DNA mistakes and continues the growth of cell membrane.

haha you kept saying centro-meres when you were describing centrosomes :)

Understanding the differences is crucial for the MCAT. Ex: In Mitosis, each chromosome is lined up on the metaphase plate by 2 spindle fibers (one from each pole). In Meiosis, homologous chromosomes are lined up across from each other at the metaphase plate for Metaphase 1 and are held by 1 spindle fiber. I wanted to say this because I don't think this video mentions that huge detail :)

Centromere - Middle of chromatid pair holding them together. Centrosome - Membrange bound organel that replicates, moves to poles of the cell, produces spindles. Centriol - Structure inside Centrosomes that produce the spindle fibre.

I LOVE YOU! I cannot explain what a great thing your doing. You are definitely born to teach, you’re better that 99.9% of teachers I’ve ever had. In 15 minutes of your videos, I feel more prepared for my exam than I did after a year w/ my "gifted education" teacher. ily.

For this alone I consider you one of the worlds great minds

The sad moment when your degree gets harder than the level that Kahn teaches at... HOW AM I GOING TO LEARN ANYTHING???!!!

At 14:00 . Kind of a minor unmentioned detail; in meiosis homologous chromosomes are held by one single spindle fiber. In mitosis its two. I understand the drawing is just trying to give the basics, but I thought it was important enough to point out. Awesome video!

This really helped me study for AP Bio!

I got a test in two days and i've done the reading but watching this is like having a pro tutor study buddy to highlight the major points

I finally understand the difference between meiosis and mitosis completely! This is such a huge relief. Thank you Khan!!!! :D

You are a lifesaver! It helped me so much. Thankyou.

That's was some great explanation. It is the best meiosis I have been taught. Best of the 3

At 2:48 wouldn't the bottom be 2n < 2n < n? Ie. After meiosis 1 aren't the cells still diploid until the end of meiosis 2?

WOW, this is absolutely AMAZING!!! I have a final exam tomorrow and I would probably have failed if it weren't for this video.

Oh my, you really save my life coz I was totally confused by my school teacher's way of teaching this topic. Thank you soooo much for making this video!

Your videos are amazing. Much better than any teacher I have. You might be a tutor yourself professionally though. I think it's also because everyone here wants to learn about cell biology, organic chemistry or any other field you're teaching. It's more pleasant explaining to such an audience.

You saved my life! Final coming up and I thank you for this explanation. Keep doing videos like this pleaseee.