Interphase | Cells | MCAT | Khan Academy

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Interphase of the cell cycle, including G₁, S, and G₂ phases.
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[@BeezyDoItAll]

Exam tomorrow. Just started studying. Got 5 hours left. Wish me luck lol.

[@tevinrittenhouse6012]

Beezy DoItAll how'd you do

[@BeezyDoItAll]

Yoo, I constantly feel some type of way whenever I see a comment like this and the person never comes back with an update so... it's my time baby!.......Smashed that exam.

[@ComandaKronikk]

good work i got one on fridaY! will keep the youtube fam posted

[@5Youssif]

howd you do

[@visiongirl4637]

Elie Ndala in the same position but I got 2 hours left...

[@asdkjfhaklhzvkl]

I was so confused as to exactly how one nucleus can divide into two because textbooks are so vague. Thank you

[@paramitarudrapaul4521]

Yes textbooks are too confusing

[@FarzanHashmi]

Mid-terms anyone?

[@mahekpunjabi9513]

Seeing this in online classes ? COVID 19!!

[@husseinelshetehy8249]

hahahahahahah

[@fatimazahra698]

Yes

[@aarizkhanshaikh1111]

Ya gyal same here

[@de-ment]

his writing with the mouse is better than my hand writing

[@cristian-TI]

Well, he's most likely using a track pad for drawing in the screen

[@kipling1957]

I think there should be another name for a "chromosome" when it is replicated into two sister chromatids (duosome?). This new entity is essentially two chromosomes lassoed together and yet we still refer to it as "a chromosome", which can be confusing for students when describing mitosis/meiosis.

[@ArielStar]

Yes! 100% agreed. Duosome, like you suggested, or anything will do. As long as there's a new name.

[@griffinhales8560]

agreed

[@55123Swiftfoot]

Not only that, but in both high school and my undergrad I encountered tricky test questions that specifically targeted how many ‘chromosomes’ are in the cell at any moment. Why it persists to be this way and teachers keep hammering on it is absurd

[@fedej8303]

@@55123Swiftfoot I just had that yesterday that's why I watched this video lol it was the only question I got wrong

[@_______andrea7005]

I’m in 8th grade taking a living environment course. You’ve helped me significantly in understanding much of what I’ve covered!

[@anaskhalid6244]

1:10 "Lets DRAW ourselves a cell" Copy and Paste Lol

[@soultakergt1118]

*to save time

[@Tryo707]

I really wish I could work for Khan Academy. I have worked in Biology/Husbandry fields and would relish the opportunity to teach. Thank you so very much for all you have given back to the world. Cheers.

[@jeonjungkook-md2dv]

my teacher only have us a few worksheets and expected us to learn it ourselves without any material. we are a pre ap class NOT a dual credit class which basically you teach most of it to yourself. this is the most help I've been able to find with accurate information. thank you so much.

[@phantasmalphasmidzoo8280]

Just finished my GCSEs and NOW I’m getting interested in this stuff

[@caseylydon209]

Bio test tomorrow and I only have 2 1/2 hours left to study and i just started oof

[@phoebe915]

2 hours left and i still have a long way to go!

[@suhasbangari7852]

i am learning this in 9th standard .......... too rough syllabus for us . ICSE Well thx for making such a nice video.....

[@Lax10000000]

Thank you so much! Learned a TON

[@rossbeckley5788]

These videos are so, so helpful and easy to understand - thank you

[@darkinuyasha3]

Perfect timing :) have a final on this (and mitosis and other stuff) tomorrow

[@slowburn3r949]

perfectly explained thanks!

[@llmmk]

didn't know dj vlad taught biology

[@yvesfaems2543]

Very clearly explained! Thank you!

[@thatboiiinnocent5546]

thank you so much got a big test tomorrow

[@joseghaleb]

Thanks! You helped me for my bio exam tmrw!

[@proud2blankan]

Thank youuùu exam next week this is going to help me so much

[@naomic7812]

Thank you This was clear , very helpful ! And I understood everything even tho english is mi second language so it's double work done

[@melikadastgheib631]

As always, very helpful! The khan Academy videos address the points of confusion in a convenient way. here for example, the confusion about number of chromosomes was resolved for me. Can you also list n and c values? ( n being the number of chr sets and c being the copy number, I think)

[@mohamedriazurrahman1456]

a perfect one which i expected . thank u

[@chickentendies7699]

this video really helpful for me as the deadliner :) exam week soon, wish me luck

[@omarmasri6309]

2:42 "my toe sis"

[@MD-ex3ro]

Omar Masri I was thinking thattt

[@kiros5854]

what did the brother cell say to the sister when she stepped on his toe?

[@kuromifytheworld008]

@@kiros5854 who knows

[@marklouis1993]

Very Helpful

[@utkarshagiwal7457]

I don't know how and why you teach everything better than my college profs

[@skyylea9859]

I think in Biology interphase should be taught before delving into mitosis and meiosis … bc it gives a better understanding . I took biology and it wasn’t factored in which is why I came to khan bc I am a different learner . If I don’t understand “the how “ I can’t learn the material … so once again thank you Khan/ presenter

[@rajeevshukla6648]

IT WAS VERY HELPFUL

[@eshagollapalli2433]

AP Bio 2019?

[@mementocatharsis9372]

Yass

[@zackie2k558]

nope 7th grade science

[@vaniyabisht9318]

Amazing video 👍👍👍

[@marwan9506]

I'm watching this 1 week before my Final Term Exams begin. Wish me luck!

[@XxOrigami58xX]

is there a video going in further detail about the protein signals involved in the different stages of interphase? thanks in advance

[@jessicag9255]

awesome vid, thank you:)

[@mariammirsal2117]

So helpful thank you

[@nand123kishor]

Good explanation!👍

[@emilydyos3043]

THANK YOU!

[@xiraleighsaenz]

i laughed so hard on the microphone... guess it'll be really hard to see through that....

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Thank you!

[@hikpopbyestudiesmuah4067]

Im here in 2021 ...... Thanks alot !!!

[@nourbadreddine4385]

THANK YOU 💖

[@thewpwtdg9972]

Really helpful. :)

[@rinad9755]

Thank you so much ☺️

[@shivamthakur6654]

got resofast tomorrow tnx

[@gatorama666]

Finals are monday, wish me luck

[@laughinglaughing1416]

exam tomorrow.i just started studying.only 12 hours left.wish me luck

[@samanthajohnson7094]

lol same

[@unbelievable1560]

Thank you man i was so confused how there is the same number of chromosomes.

[@XxKveksikxX]

thank you :)

[@xcxalex]

Studying for medicine entrance examination. You saved my studying Khan😅

[@Hana_ytb]

Studying, 1 hour before test wish me luck

[@ScientistAlif]

*Thank You*

[@thehecticdude6884]

Got exam about biology guys wish me luck on the test tomorrow

[@machachii]

Isn't g2 when the organelles replicate inside the cell aswell?

[@linakhalid4173]

I really want to know what board do u use

[@cadijatraore2891]

Love love love your voice.

[@mingliu6346]

Love his voice too!

[@Neha_671]

It isn't too much good..

[@usamadbalouch3585]

what about Go interphase?

[@jamiejones18]

What about the G0 stage of interphase?

[@hatemkamel6039]

Jamie Jones not funny

[@nat-hk8di]

Yeah. I was wondering about that too.

[@Aditi-pz5qk]

Assassin Dude there is a G0phase in a interphase named g node phase in this phase cell cycle can remain arrested in G1 phase .then g1is called as G0phase (quiescent phase) cell in this phase is metabolically active but no division

[@abo-sr7ds]

Thank u

[@mydology1089]

test tomorrow. thank you.

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[@yanism8266]

parfait

[@mennatullahemad3187]

As biology here!?

[@science-y9209]

didn't you mention about check points

[@juliamaya6328]

in g1 the kromosom is haploid or diploid?

[@ma.joanneellinecastila7412]

what happens to the mitochondria during interphase? please reply asap

[@brittnyefike2641]

Butt

[@violetpearl9049]

all organelle replicate.:-)

[@tantrumsa.150]

You're my new hero!!! Thanks

[@DevCoffey]

Any other college students that didn’t retain any of this information from high school?

[@jazminreyes3481]

Wondering why he didn't explain the checkpoints.

[@sandraelias2663]

do enjoy his lessons. Don't enjoy using headphones and hearing his swallowing. He is too close to the mic. Thanks for a great explanations though =)

[@anssmughal5559]

Where is G0 phase sir??????

[@yoobia]

Isnt that the resting phase after mitosis? :^

[@hunnuroberts209]

Wicked thank you so much

[@lilsteven835]

Im taking a test rn lmao

[@christinadp136]

Soo.. exactly when does chromatin form into chromosomes?

[@idkimmercury]

when the cell is dividing

[@laughinglaughing1416]

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[@jbrown704]

First

[@user-tn3re3yw2f]

Aren't centrioles duplicate in Gap1??

[@MSidd8771]

no

[@chilledstudentvloggr4732]

لطيفة عبدالله that's on my book as well. it says at the end of G1, centrioles duplicate at the centrosome matrix.

[@CodyPexton1]

I love you

[@isabelcastillo7982]

You didn't even explain what's goes on in G1, or G2 like why is the cell growing/whats growing. G1- its growing because the cell is making carbs, lipids, and proteins. In G2- the cytoplasm is growing. Or even how the chromatin gets wined up..

[@yusmailismail223]

Thanks! I was wondering about that too...

[@hatemkamel6039]

In G1 more organelles are synthesized, but he didn't explain at all G2

[@Joeymellino]

what is cytokinesis mean

[@roskstar342]

dividing of cytoplasm. it happens after Telophase ( last phase of mitosis)

[@toriaclassix4800]

Mid term gang wya

[@splitbrane]

Hi

[@rkharinisre3074]

If 1 chromosome is copied how it is still 1 chromosome 5:13

[@chandrakantshelar873]

my.. tosis

[@Moody_Muffy]

Ooo

[@Neurosis_Cordis]

I’m sorry, but the way replication is explained is super shoddy, it could easily confuse someone who had just started delving into the subject into thinking there’s more chromosomes/chromatids than what’s actually the case. In a nutshell, the DNA replicates and what was once a single chromosome now becomes two identical copies which are called the chromatids. However, these two chromatids are not separated yet, but are still attached together at the centromere (a well-known X shape) in a single structure; this structure is still known as a chromosome which is made up of two sister chromatids. They eventually separate in anaphase, which is when they become individual chromosomes.

[@ahmedhamada7151]

isn't it the opposite like 1 chromatid and 2 chromatids make 1 chromosome?

[@explosiontigerman8262]

neet

[@jayveeilagan2303]

STEM pa mga Tanga

[@trizyrl2163]

Get the hell on with it. just tell us wtf it does

[@radhikarapolu1238]

Who heard DNA It is BTS song