Cell Cycle, Mitosis and Meiosis

[@rahulalmeida4633]

We're all a bunch of cells watching a bunch of cells talking about a bunch of cells. Huh.

[@_its__maria_9505]

Lol I love this!

[@deshawnelisha3331]

I dont mean to be so offtopic but does someone know a trick to log back into an instagram account? I somehow forgot my password. I would appreciate any tips you can give me.

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@@deshawnelisha3331 use your email to get a code

[@fwvipra]

true

[@jeodbaile8006]

LOL 😂😂😂

[@faisal33]

Your jawline is awesome

[@sav16658]

Faisal Tabusalla love how we’re all here desperately trying to understand bio and some people are here talking about Mr. Anderson’s jawline😂

[@Arlojmikk]

>having a jaw

[@ruthiemorton873]

I hadn't noticed this before but now every time I'm studying for an exam I'm gonna be distracted by that jawline >.>

[@davy1220]

U think hes a looks maxer

[@sundari8224]

@@davy1220🤫🧏‍♂️

[@Bozemanscience1]

I live and teach in Bozeman, MT. That is all.

[@100-percent-locked-in]

K if I get an A in Biology, (most likely,) I give you credit FOR SURE.

[@lisachaffin3671]

Shouldn't 1:28 be 23 pairs of chromosomes and 46 total*

[@windhealingfire768]

DUDE DO YOU KNOW HOW HELPFUL YOUR VIDEOS ARE FOR ME???? I'M IN BOI 107 IN COLLEGE AND THE TEXTBOOKS MAKE MY BRAIN MELT BUT HOW YOU DESCRIBE THEM..I'M ACTUALLY GETTING GOOD GRADES ON MY EXAMS. I DON'T KNOW HOW TO THANK YOU......JUST THANK YOU THANK YOU THANK YOU SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO MUCH YOU ARE A COMPLETE LIFE SAVER.

[@joshuazayas1040]

Dis nigga a genius

[@caseystevens1989able]

lol

[@stephenprice3357]

kmsl

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[@austindoyle8139]

You're my new Bio teacher now. My now former teacher can't explain crap. Thank you so much!

[@emiajyduj]

I love your tone of voice, so peaceful and confident! I have learned a lot from you. Without your videos, I would have never passed BIO with an A+!! Thank you Bozeman!

[@gayatridua2635]

Division of nucleus is a PART OF MITOSIS and is called Karyokinesis, having 4 parts: Prophase, Metaphase, Anaphase and Telophase

[@dogzlf]

Great video! BTW at 10:45 you might want to make a video note as to not confuse people. You said mitosis when you meant miosis.

[@kaisloan7488]

dogzlf Thanks, very helpful. Watching this 6 years later

[@mikaelawashere2486]

@@kaisloan7488 Thanks, very helpful. Watching this 2 years later

[@29mangoluv]

You have the power to make us understand anything and everything. Thank You. I Love You.

[@iggii3]

I know your videos dont replace my book but they sure demonstrate clearer concepts in addition to examples I can relate to. You sure make learning more fun and it doesnt make me want to fall asleep. Keep up the good work on these videos, they sure are a great help. Even for a college student such as myself.

[@conorbitz7620]

No wonder my teacher only rarely shows us one of his videos, cuz Mr. Anderson here is a better teacher...anyway, thank you!

[@JadedK0819]

If it weren't for you, I wouldn't have passed biology. Thanks man!

[@ducks2.075]

studying now lol

[@rr6401]

your # of likes= the total number of chromosomes each human body cells have

[@MASUCHINXB]

@@rr6401 lol

[@daselahgraham3444]

YOU ARE AN AWESOME TEACHER!!!!! WITHOUT I WOULD NOT PASS THIS CLASS!!

[@TheQueenKKay]

that lizard is a strong independent black woman who don't need no man!

[@WillsWesseh]

lmfao

[@abegonzales64]

lol

[@ostazz5]

theletterafterj so start getting into mitosis and have your own baby ;)

[@AbdullahQureshi1]

ostazz5 not funny, u just want a laugh right

[@stephenprice3357]

kmsl

[@MSJONESBLOUNT]

You have an excellent speaking voice and explain things very well. Thank you so much, I needed some help bad!

[@danielg4754]

Thank you reviewing for AP test tomorrow.

[@citrinestone7928]

+Daniel Gross Hi! I know this is six months later, but do you mind sharing how you felt about it? :)

[@nemeanlyan7918]

Daniel Gross Lol I'm here doing that this year. Wish me luck 2morrow 👍🏼

[@sammoneyy]

Urface McEggington I'm fucked tomarrow...

[@matthewli9164]

my boi sam ur gonna be fine. we ALL fucked

[@sammoneyy]

Matthew Li lmao

[@rosen9640]

You did a great job explaining cyclin! I was really struggling with that

[@purple9847]

Your videos are always so helpful

[@Ac102196]

You sir are brilliant!! Somebody give him a nobel prize!!

[@Mao9807]

this is the best biology video I've ever seen. Thank you sir, It's so much fun to learn when everything is explained so clear

[@misterboss476]

Mr. Anderson is Daddy

[@emolozer9261]

Misterboss he can fertilize my gamete 💦💦😫😋🔥🔥👌💯

[@estefaniagtz8342]

Thankss!!!!

[@sav16658]

y'all r crazy. . .

[@SimpsonBeliebers]

we have a student teacher in my class now and she is awwwwwwwwful. i feel bad. but uhh, you have helped me tremendously! WHO SAYS THE INTERNET CAN'T HELP!?

[@basselpp]

this guy is the reason i understand biology. thanks!

[@dashti7215]

i love his teaching way he makes it very easy and simple and direct too

[@mckaciesoobrattee2972]

You are well taught sir .This video has been soo good for my understanding and revision. Thank you .

[@mbmccamey2]

Awesome! Better explained than my college professor!

[@nickgaughran3286]

AP Exam is Tomorrow 😭🙏

[@RNotelle]

Thanks for sharing this video! It is a great asset and complements my text readings well.

[@LovePEACEBelieb]

you really r a great guy. God Bless You

[@RileyPyroperbole]

Thanks for helping me study! Very concise format..easy to understand.

[@chrisboyd1052]

helpfull on the key topics, wish you went a little more in depth, and explained the teminology!

[@vitka101]

This is very helpful, thank you

[@totoyesica]

wow, for the first time ever, mitosis made sense. thank you very much!

[@sieylamuniem1444]

I was amazed about the lizard I forgot to listen to the rest of the video

[@justinenewcomer4405]

Thank you for making these videos I didn't quite understand the sex cell and cell reproduction and my Bio teacher makes it a little confusing to understand (she told my class too look you up) I subscribed so If I don't understand a topic I'll look for that on here (now I hope I don't fail my midterm)

[@Chandler890]

isn't it 23 pairs of chromosome not 46 pairs

[@hannahelarabawy7550]

You succeeded to teach me what I didn't understand after 3 weeks of explanation in 13 minutes. THANK YOU SO MUCH! I am now ready for my final tomorrow :)

[@HH-gl2mx]

I want to cry I have a test on this tomorrow :(

[@jessicaspringhetti3299]

10:48 should be meiosis not mitosis

[@lolorara9232]

Thank you for sharing!

[@youtubemagic8087]

interphase (most of cell's life): G1 phase-cell growth S phase- DNA replication, copies all DNA in cell G2 phase- continue growth getting ready for cell division Mitosis:

[@odessa1898]

how'd u just teach me more in 13 minutes than i learned in 2 months. bless u. Merry Chromatidsmas

[@luchiamir1989]

the histologic image you show at min 4:30 is not of the "skin" as you say but of non nonkeratinized stratified squamous epithelium that is present in the GI tract.

[@bassodivo1]

so basically he showed us a pic of intestines? lol

[@evamustafa6103]

Thanks, you helped me soo much. You are great teacher. Really. Wow :)

[@hollykm]

You're my hero

[@Saluurose]

u save me with AP test tmr !! thanksssssssssssss

[@danalo5991]

10:38 proly laughed cuz he covered the circle perfectly

[@erikvelazquez7157]

AP Biology 028 1. trillions 2.2 complete sets of chromosomes 3. Make a copy of the cell 4. To make haploid cells from diploid cells 5. Mitosis: Division of the nucleus Cytokinesis: Division of the rest of the cell 6. G1: Growth phase S: DNA gets copied G2: Continues to grow to ready for division 7. Interphase 8. When a cell stalls and doesn't divide or grow 9. Cyclin 10. A cyclin dependent kinase 11. A chemical which speeds up actions in a cell 12. Evolution 13. promoting factors 14. 2 & 4 15. Growth, repair and asexual reproduction 16. Sexual reproduction 17. Different parts of different chromosomes swap with one another crating diversity. Bibliography: quizlet.com/258991699/ap-bio-028-cell-cycle-mitosis-and-meiosis-flash-cards/

[@joshuakrueger2535]

You are the best

[@merebbbb]

i really hope if my teacher can explain just like you ..... GREAAAAT TRACHER ,,thank you so much !!!

[@simipatel8120]

where did the lizard begin? like if each of them just copied their dna to make another lizard.. then where did it come from? from another lizard.. right. but where did that lizard come from? i am confusion.

[@wouldbfarmer2227]

at 1:30 he says '46 pairs' when speaking about diploid 2n=46. Shouldn't it be 23 pairs?

[@lisachaffin3671]

Yeahhhhh not really sure what happened there either? I've literally always learned 23 pairs 46 total, and google agrees sooooo, let's hope the last minute Cramer's catch that

[@Absbs123]

This is one of the best explanation ever made. Thanks Mr. Paul Anderson

[@kenesiaphillip1687]

very helpful, and very cleary explained...

[@AbdullahQureshi1]

You are soooo lost! there is 23 pairs of chromotids in one chromosome

[@kuchbhi4014]

Abdullah Qureshi he have mentioned it and corrected his mistake , y r u making a issue out of it

[@CareyReeve]

I second this answer. The ploidy level (the number of duplicate chromosomes) doesn't change when the chromosomes replicate. Many organisms (mostly plants) do have many copies of each chromosome, though. Wild strawberries can have 2, 4, 5, 6, 8, or 9 copies depending on the species. Aside from this slip-up, though, this is a great video that really makes the contrast between mitosis and meiosis clear.

[@hirusandutharumuthumadduma7478]

Good job! You are helping my Olympiad grandly. Thanks

[@MIBstudios-N-Juliana]

At around 10:28 and 10:46 you call EACH type of division Mitosis. So, am I the first and / or only person to catch this since 2011 when you posted this video? Surely not... ???

[@corona1590]

My teacher told us to watch your videos the first day of class. I was the only one who did.... And that's why I'm #1 in my class. Thank you so much

[@christianseely9934]

thanks. great teaching style, most teachers (especialy math/science) don't teach this well. keep it up.

[@bonolobonifaciosebolai3761]

yes, it was very helpful. thank you

[@Marhuss13]

Ya it should be 23 pair not 46pair but thnx u verrrrrrrrrrry much

[@patharea]

Nice explanation

[@nohairaqy3576]

very helpful video..thank y

[@pavellambracht5823]

So during mitosis the nucleus is divided, but what about mitochondrion, RER, SER, and so on? do they appear only in one cell after dividing??

[@BurningAndromeda]

At 13:07, after Meiosis I, isn't the DNA structure supposed to be 4n = 2, at least by what the picture illustrates.

[@sekamenacerecords1]

Isn't it 23 pairs of chromosomes in a human cell, not 46?

[@DJCNK97]

merci beaucoup

[@waiseadrakusiwale1225]

23 PAIRS....

[@ducks2.075]

for a total of 46...

[@lisachaffin3671]

1:28 46 total chromosomes, 23 pairs*

[@drhf1214]

25... videos... more....

[@assassin51000]

Good luck on your AP Biology Test tommorow. I'm in the same boat...

[@drhf1214]

you too! I'm finally on video 45. D: BUT I still have to take a practice test from my cliffsnotes book

[@assassin51000]

It's a strugle but that five isnt going to get itself!

[@drhf1214]

yep! I hope it's all worth it in the end. Now on my first practice test in my review book. It's surprisngly easier than the official practice test. we'll see how i do.

[@crow1628]

here six years later, how'd the test go?

[@samanthabrown4571]

THANK YOU SO MUCH!!! such helpful review

[@kaleakai9898]

I just found out that juice wrld died today, today is a very sad day, he was the only person I ever truly wanted to see in concert or in real life

[@manavpatel2591]

f for juice

[@XxMarinePlayerxX]

Did you pass

[@sandrad2778]

thnk u.. this is soo helpful

[@TacticalNukeIncming]

i have a question : Is there any time that Mitosis and Meiosis could occur at the same time? Explain when this could occur.

[@cyrpto666]

thank you!!

[@mgdruffcan]

Im here to study for an assignment thanks mr. andersen!!

[@dl1599]

Love your videos! They really help so much. Keep up the awesome work! :)

[@bryceflanary1937]

0:25 whiptail lizard aka Jesus lizard

[@Hahahdizlpsbzl]

soooooo helpful I am studing medecine in france so god bless you thanks

[@f4is4l123]

my god dude, you don't know how helpful your video is. i've midterm exams tomorrow on this subject :) THANK YOU SO MUCH. now i'm gonna send this vid to all my friends!!

[@Cocochanew5]

My teacher isn't great and tells us to use the internet to learn the lesson... This is much better than any teaching!

[@everttenjoh4545]

I love listening to your lectures they are self explicit

[@maxy55100]

وقسم انك رهييب ليت عندنا نسخه معربه منك خخخـ helpful ,,, thanx

[@rashmibehera8859]

Awesome!!!! This is my 12 th video I am watching of yours only of one chapter.....I have also watched an interesting video of yours WHY IS SKY BLUE

[@amrutvani2]

At 10.47 it should be meiosis and not mitosis. Kindly correct.

[@TheWorldOfBudgetVinylRecords]

I am learning things about Cyclin and what exactly it does that my College 1610 professor and required textbook never explained well or at all... Mr. Anderson, you teach Science better than many of the professors at my university.

[@courtoceanderson]

thank you for taking the time to make these videos :)

[@alec12484]

Dude, I don't know what I'd do without your videos.... well probably read each chapter several more times. Thank you so much.

[@nelswolf]

Wrote a page of notes from this video for my APbio class. Send help please.

[@stevensosa5995]

Nel's Wolf dying in AP bio my teacher doesn't teach shit so I'm just depending on this man for everything

[@nelswolf]

Steven Sosa I have a really good APbio teacher. We have one of the highest success rates in APexam.

[@kirsten5087]

Steven Sosa same my ap bio teacher sucks ass. She's making us do all the lectures and stuff first semester so next semester all we're doing are the labs. So we have tests on 5-8 chapters on a monthly basis. It's so fucking hard 🙄

[@stevensosa5995]

Kirsten Williams damn I feel for you! For me she just never gives us notes or even teaches. The class is chill when we aren't doing labs, but the tests just eat your grade. Always banking on projects and dumbass postlabs to at least get a ducking C

[@kirsten5087]

my teacher just throws material at us and expects us to know it. We have a test in two weeks on 8 chapters and she told us last class while trying to cover 4 ppt, each over 90 slides in about 90 minutes. I swear she's crazy! Highest test grade I ever got was a 56 and funny thing was she told me with my 64 (quarter grade) that I was doing well.

[@amberduvall9966]

When the chromosomes duplicate the ploidy does not change from 2n to 4n. Yes the chromosomes have duplicated but they form sister chromatids which make up 1 complete chromosome (they remain connected here and are not separated). Since only one set exists from mom and one exists from dad the ploidy number remains diploid or 2n not 4n. The way you are illustrating this, you are referring ploidy to the chromosome number not by the source of the genetic material.

[@meetamyskar]

These videos are so much of help!!! god bless Paul Anderson! its making my life so simple.....

[@j3fritz]

DNA replication doubles the quantity of DNA but it does not change the chromosome number. This is not a subjective understanding...but a common misconception. 4N are tetraploid cells with 4 copies of each type of chromosome regardless of the number of chromatids each chromosome are made of.

[@jayejayeee]

really informative and interesting

[@CattoFoX]

When the cell cycle multiplies, the chromosome that is being copied is not 1n to 2n to 1n- it is simply 1n to 1n to 1n because the duplicated chromosome is still considered a single chromosome.

[@markrichardson2073]

Really you believe CDK proves evolution? That is really the only thing I don't like about this video because that doesn't prove evolution.

[@atarashi26michi]

Cell enters cell cycle: Interphase [G1 (grows), S (copy DNA), G2 (continues to grow and prepares for mitosis)]. The

[@wouldbfarmer2227]

at 11:00 or so, he says 'mitosis' when he means 'meiosis'. I agree that he has very good videos but he needs a very good editing team. As always, get multiple sources for your education, and ask questions, be critical, and never swallow it whole.

[@anax6777]

This was 12 years ago.. I think around that time is was pretty okay

[@paolopalazzolo7883]

Veryyyyyyy heplful, you deserve a novel prize

[@HondaKikuu]

You mean the one that Hemingway won ? :D But I agree, thank you very much for making this :)

[@edthoreum7625]

tony & oscar 2!

[@occupytosavetheworld]

yes, it has interphase, prophase, metaphase, anaphase, telephase, and cytokenisis. then it does it again it results in four sex cells.