Cell Cycle | Overview

The cell cycle, or cell-division cycle, is the series of events that take place in a cell that cause it to divide into two daughter cells. These events include the duplication of its DNA (DNA replication) and some of its organelles, and subsequently the partitioning of its cytoplasm and other components into two daughter cells in a process called cell division.
In cells with nuclei (eukaryotes), (i.e., animal, plant, fungal, and protist cells), the cell cycle is divided into two main stages: interphase and the mitotic (M) phase (including mitosis and cytokinesis). During interphase, the cell grows, accumulating nutrients needed for mitosis, and replicates its DNA and some of its organelles. During the mitotic phase, the replicated chromosomes, organelles, and cytoplasm separate into two new daughter cells. To ensure the proper replication of cellular components and division, there are control mechanisms known as cell cycle checkpoints after each of the key steps of the cycle that determine if the cell can progress to the next phase.
The eukaryotic cell cycle consists of four distinct phases: G1 phase, S phase (synthesis), G2 phase (collectively known as interphase) and M phase (mitosis and cytokinesis). M phase is itself composed of two tightly coupled processes: mitosis, in which the cell's nucleus divides, and cytokinesis, in which the cell's cytoplasm divides forming two daughter cells. Activation of each phase is dependent on the proper progression and completion of the previous one. Cells that have temporarily or reversibly stopped dividing are said to have entered a state of quiescence called G0 phase.

[@vidhyabr3035]

Thanks Hussain biology for teaching Lifescience in best way.I cleared Kset exam.respect and live from karnataka 🙏

[@hussainbiology]

thanks for appreciation.. Glad it helped you.....

[@dsaakibelectronics]

Thanks for review.😍

[@kalpnapandey1192]

Thank you so much for your lecture

[@keziahwei8001]

Sir, you are the best! This diagram really reduces my worries.

[@sridharreddychada6823]

Good video with the pictorial representation. Thank you, sir

[@hamihamro]

Few seconds before the video ends, there comes Heterochromatin like words- Large data in short sequences😂✌️...
Great video🙏

[@patchworkpig89]

Excellent video, thank you

[@kalyani1379]

lots of effort has been put into making this video and it shows!

[@hussainbiology]

thanks for appreciation..Glad it helps....✌️

[@kookiesqueenbrightestworld6822]

Very well explained sir thankyou so much you have cleared all my doubts . Tomorrow is my biology exam it helps alot thanks 😊.

[@aaqibhameed2972]

Superb sir 👏👏❤️

[@auonrazamalik4043]

So informative ❤️

[@michaeleisenberg7867]

Shabir, Excellent overview!
👏👏👏
I love 💘 how you pull all this information 📚, condense it 📖, then present it 💻 logically 🎓, simply, & succinctly 📝.

[@hussainbiology]

thanks for appreciation. Doc.... Keep loving ❤️❤️❤️

[@yogeshmeena3314]

Land5ttfddfggg

[@tejasetty7217]

U said that cytokinesis is not the part of mitosis... But.. IN NCERT OF CLASS 11... CYTOKINESIS IS A PART OF MITOSIS!!!

[@Sara_6722]

Yess.. in our book also it is said that mitosis and cytokinesis together form the M phase

[@kammubohra6514]

Yea you are right 👍

[@weirdvibes_7]

Nice and simple explanation

[@hemasree894]

Well teaching bro 👏👏 and kindly upload the img in the discription box that u have shown in the vid it'll be very helpful

[@sanjanaSingh13]

Thank you!!! Watching from Us, Virginia. Preparing for my BIO101 college class exam

[@RGMX92]

Great video.

[@rivercuperus1158]

loved the video!

[@Pooja-km8vk]

Sir, can you please upload a vedio of fermentation technology Which includes : fermentation technology , recovery of fermentation product , design and parts of fermenter , microbial products , microbes in food industry , fermentation.

[@barnalisinha4705]

Hats off to ur creativity sir ...

[@hussainbiology]

thanks for appreciation..Glad to know that it helps ✌️

[@Islamicandlearning]

Great sir

[@monicadupont9606]

Very nice explanation, Sir! It will help my classes. Thank you. 🙏

[@hussainbiology]

Glad to hear that

[@shahabkaram2439]

Simply Splendid 😍

[@hussainbiology]

thanks for appreciation

[@khusirai7231]

Thanks 😊💗

[@evamadaan4933]

As expected its amazingly done

[@hussainbiology]

thanks Eva for appreciation

[@rawankarim9490]

God bless you amazing video 👏🏻👏🏻👏🏻👏🏻👏🏻

[@hussainbiology]

thanks Rawan for appreciation..Glad it helps

[@GoodnessAja-lq1do]

Thank you for the wonderful teaching

[@hussainbiology]

You are very welcome

[@kookiesqueenbrightestworld6822]

Sir could you please make more videos of other topics of biology like z-scheme , Calvin cycle as easy as you have made for cell cycle

[@hussainbiology]

z scheme is already available

[@sanjanasprakash6134]

In playlist this video is included?

[@seerapumeghanareddy2450]

Superb

[@Kingkhan-nt9sq]

if the DNA is already replicated in the S-phase thwn what is the need of mitotic phase to devide it again? kindly expalin

[@smilodon2344]

I finally found it 🎉

[@TRADERAMODKUMAR]

ohhh great excellent

[@SciBasics_seemashailjanand123]

Nice explanation @Sci Basics

[@hussainbiology]

thanks for appreciation..Glad it helps ✌️

[@dreamer5911]

Thank you sir

[@shwethakrishna3716]

Superb sir.. it's amazing teaching

[@hussainbiology]

thanks for appreciation..✌️✌️✌️

[@shahidarazzaq8980]

Good ❤❤❤❤

[@nafisagambhir]

Amazing😎😎😍😍

[@hussainbiology]

thanks for appreciation

[@Abhishek-iz6lw]

Waiting 😆😆😊😁

[@newhollywoodmovies56]

helps a lot before exam

[@nifat5203]

Thanx a million Sir.....very informative lecture

[@hussainbiology]

thanks for appreciation..Glad it helps ✌️

[@bipashasdiary8611]

what would you expect to happen to chromosomes in successive cell cycle in a lineage have loss of function mutation of H2A.Z ?

[@snehaldesai4423]

What happens to histones in s phase during replication of dna

[@biology_mcqs3037]

👏👏👏

[@hussainbiology]

✌️✌️

[@asimalizakir5456]

Well ♥️♥️

[@KanchanKumari-vm6cc]

Hey shiv guru mere life khusi hi Khushi rhe

[@bandayiqbal8097]

When replication is going on ..or there is active rep forks...wht will happen to transcription?

[@hussainbiology]

unable to understand you question sir ??

[@ismailnadaf24077]

👌👌👌

[@rumanatuli134]

nice presentation

[@hussainbiology]

thanks for appreciation..Glad it helps

[@sunrisechannel6246]

Nice explanation

[@hussainbiology]

thanks for appreciation..Glad it helps ✌️

[@fatmamamdouh4661]

Sir I want to know how many DNA strands we have on each chromatid not whole chromosome?

[@mehwishnisar1177]

💜

[@user-bp7rb2yf7l]

Thank u bro

[@SubhranshuSahu01]

The one video replace the 4 class of University..... !!

[@subhadipdas2482]

👍👍👍👍👍👍

[@suchitasuman5609]

Can you tell me how much time is taken by one complete mitosis cell division

[@shumailachaudhary1890]

It is depend on cell to cell as eukaryotic cell takes 24 hours for complete cell cycle ...and yeast take 90 mint ..

[@folawiyosulaimon1647]

no video of checkpoint pathway of G2

[@renaissance_bhattacharya367]

At 2:38
In S phase Only DNA replication takes place
No increase in chromosome no.

[@govindtomar5024]

Can we get the notes of the same in pdf

[@sulimankhan777]

Can you convert this video in urdu

[@thanilsanasingh2706]

My question is.... What is the crucial part of cell cycle???

[@aru0066]

According to me that would be, cytoplasmic division because if that doesn't occur and the DNA has already divided then it will leave two sets of DNA which will lead to chromosomal aneuploidy

[@aishaagaming]

Sir app kashmir sa ho kya

[@hussainbiology]

g haan bhai

[@aishaagaming]

Mai na aap ko aawaz sa paichana

[@swatigupta3137]

Sir b.sc 2 year ke class online kab padhate h aap plzz Bata dijiye claas shahi nahi chal rahi h meri exam bhi aa gaye h samne sir plzz b.sc 2 year ke botany zoology ke class online padha dijiye 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

[@hussainbiology]

Alag se classes mushkil hai

[@munatamang2573]

I need notes sir.

[@shaikhussain5356]

Mera naam bi hussain

[@abhimasih2960]

Clean nhi dikhta hai

[@hussainbiology]

Turn into 720p

[@papupathan9294]

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[@sutoparoy7432]

Sir nots

[@varnamohan2629]

I like ur videos but ur pronounciation for some words 😑 pollowed ❌followed ✅

[@hussainbiology]

apologies

[@karimulrahman2676]

Thank you sir

[@learningisfun3246]

Thank you sir

[@hussainbiology]

Welcome

[@afshiyashaik123]

Thank you sir

[@hussainbiology]

Thanks for appreciation..Glad it helps ✌️