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

@sydnei5626

8 жыл бұрын

+Cha Boi Could you explain what Centrioles are?

@mushroomflow8499

5 жыл бұрын

@@sydnei5626 *(1 year later)*

@aaishakhanniazi8984

5 жыл бұрын

Centrosomes are microtubule organizing centres and essentially the spot where centrioles are. Centrioles, nobody knows what they do

@mathu991

5 жыл бұрын

A bound pair of centrioles make up a centrosome. The centrioles are the cylinders made up of 9 triplets of microtubules.

@mathewvarghese7041

4 жыл бұрын

Thanks!

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

@annapratico2838

3 жыл бұрын

Telophase is termination

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

@sosweetman9752

9 жыл бұрын

Same!

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

@rukminiroy7232

6 жыл бұрын

Reza Nobari that is just ridiculous. His videos r just d best.

@rocotips8191

6 жыл бұрын

Reza Nobari well then dont watch it just leave

@farahkhan1489

5 жыл бұрын

Reza Nobari let’s see how good you are.. stupid

@ayaskantbal6288

5 жыл бұрын

Probably because he didn't explain lepotene zygotene pachetene etc

@csu-ojtrolandcareburdeos6211

3 жыл бұрын

i think so

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

@finnberuldsen4798

5 жыл бұрын

Pea Mat or PMAT is also pretty useful

@lLyralei

5 жыл бұрын

Propase-metaphase-anaphase-telophase.

@kfji2501

5 жыл бұрын

I always memorized it by the word "Tampon" ^^ = Tamp backwards. Don't ask me why, but it has been stuck in my head for more than 15 years now.

@divyamgoel3964

4 жыл бұрын

pass me a taco, chief for cytokinesis at the end lmao

@hello-jz3sg

4 жыл бұрын

Pass me a taco cuh Prophase metaphase anaphase telophase cytokinesis

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

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

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!!!

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!!!

@sunduskhan242

3 жыл бұрын

is his name is Khan?

@who5563

3 жыл бұрын

@@sunduskhan242 salman khan is his name

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

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.

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

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

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

I'm really watching a video from 2009 right now

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

@skyylea9859

2 жыл бұрын

Yes bc he messed up a lil … I’m glad I was following from the beginning lol

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

@TitanTubs

5 жыл бұрын

AAAAAAAWWWWWHHHHHHHHHHHHH AHHHHHHHHHH& AHHHHHBHHHBHHHHHHHHHGH YEAAAAAAAAAAAAHHHHHHHHHH

@alexaowen3903

5 жыл бұрын

I have to agree..

@waseemzahoor3428

3 жыл бұрын

@ㅤㅤღنورღ thats kinda weird idk

@who5563

3 жыл бұрын

@@waseemzahoor3428 ikr

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

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

Me here after 11years....👁️👁️

@just_an_artboi_

11 күн бұрын

14 yrs now 😮

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.

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!

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!!!

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

@yasminebelghith6741

7 жыл бұрын

rebekah huebsch pretty much same

@tiktoktiktok4056

3 жыл бұрын

How did you do

@beckers7601

3 жыл бұрын

Chocolate Muffin dude I have no clue I watched that 3 years ago.. graduated high school tho so probably good enough

@tiktoktiktok4056

3 жыл бұрын

@@beckers7601 wow it really has been a while😂😂

I was hoping for the sub phases in prophase 1

@Chef10245

5 жыл бұрын

LZPDD=CBTCT

@adventureawaits3860

3 жыл бұрын

@@Chef10245 I understand the first part but what's that equal to?

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

@who5563

3 жыл бұрын

Did u pass?

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

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!

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.

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!

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

@aliciasheridan1477

6 жыл бұрын

wow, bc everynsingle person cares. stop being cocky

@yopriceygames

5 жыл бұрын

alicia sheridan this is legitimate useful information as it shows that the 23 inside gametes is half...

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

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!

@sosweetman9752

9 жыл бұрын

How did the nmat go?

@oscarj_1082

9 ай бұрын

@@sosweetman9752 I assume well

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

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

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

@Goku-dw7zx

2 жыл бұрын

Did you pass

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

@JYtheamazing

8 жыл бұрын

+Hilal Elgargini *tetrads. :P

@hilalelgargini1846

8 жыл бұрын

Jus tin yes, sorry about that.

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!

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

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

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

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

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

@TheDevAnt

8 жыл бұрын

3. Genetic variation 6. Independent Segregation imo.

Excellent explanation......thanks

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

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.

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

good job 👏👏😁

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!!!

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

Very helpful thanks! :)

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

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!)

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

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

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.

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

@mackenzie6744

Жыл бұрын

not the spoiler... :

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

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

@TheAlysse101

10 жыл бұрын

Nope I caught it also in the mitosis video also. Confused the heck out of me for a minute!

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

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

thanks for confusing me with centromeres and centrosomes

@ferociouzzed1971

6 жыл бұрын

well in the mitosis video he did a great job in explaning the difference between them and repeated It more than 10 Times so you shouldent be confused If you watched It, you should say thanks khan academy For explaning Everything clearly, and A note for the viewers (Keep The Difference Between The centromeres and centrosomes In a Paper next to your pc While watching this video because he will switch between the two terms after 16:16)

As-Biology tomorrow afternoon -_-

@xXMatix700Xx

10 жыл бұрын

same xD

@TheBlaze4000

10 жыл бұрын

today!!!

@xXMatix700Xx

10 жыл бұрын

I KNOW !!!!!!!!!!!!!!!!!!!!111

@ZyNeEnZyNe

10 жыл бұрын

Good luck guys

@xXMatix700Xx

10 жыл бұрын

thanks, you too

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

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

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

@aria521

6 жыл бұрын

It's actually helpful

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

@praniv6253

6 жыл бұрын

Naznina sultana ahmed diagrams help understand content, you can visualise diagrams and images more accurately and faster than words

@unoriginal_name4576

6 жыл бұрын

Lietothe 90 yeah but it wouldn’t take so long if he’d drawn them out beforehand

@manojrathore4425

6 жыл бұрын

Its good that he draws them while explaining , it may be boring for some but life-saver for those who are not very fluent with the topic as it gives them some time to cope up ...

@caitlin32

6 жыл бұрын

For someone who is both a visual and auditory learner it helps

@rukminiroy7232

6 жыл бұрын

Speed it up . KZread gives u the option.

Thoroughly enjoyed this, very educational and helpful!

We're doing mitosis/meiosis as part of an A level equivalent course. I can assure you that I do pay attention in class - not sure how that has anything to do with thinking a video goes through it too fast? The whole 'that green guy..' etc just lost me. But hey - I've found a book which explains it better so think we all have different learning styles. :)

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!!

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

@sosweetman9752

9 жыл бұрын

He should haha!

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

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

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

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

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

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.

This really helped me study for AP Bio!

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

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

This video was extremely helpful. Thank you!

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

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

Omg...this is better than the textbook and TEACHER!

This Video helped so much. It sucks when your teachers have lessons on stuff like this ( like new stuff) on days when I'm not there...sick...

Thank you !! That helped alott!! :)

PMAT helps me remember the phases in order

I dont care if there are mistakes through out the video becuase he teaches this WAY better than my bio teacher does thank you!

i also do this every time , get puzzled between centriole & centromere!! nicely presented lecture. thanks.

wait so in miosis I it starts with a diploid cell, and then ends up with two haploid cells. In meiosis II why do the two haploid cells become haploid cells again??? im confused :S

i am indian but i can understand your whole lecture you teach fantastic thank you very much keep more videos.....from dhruv gadhavi

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?

Centromeres are the attaching center for two sister chromatids (duplicated in the S phase). Centro"somes" are the organelles responsible for adhering the cytoskeleton and also building mitotic spindles which help pull chromo"somes" apart. That's how I differentiate them.

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

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!

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.

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