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.

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

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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.

[@hamihamro]

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

[@sridharreddychada6823]

Good video with the pictorial representation. Thank you, sir

[@patchworkpig89]

Excellent video, thank you

[@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]

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[@kookiesqueenbrightestworld6822]

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

[@gameplayslemono]

Is it possible to initiate transcription during DNA replication, as DNA strands separated and form forks

[@weirdvibes_]

Nice and simple explanation

[@kalyani1379]

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

[@hussainbiology]

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

[@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

[@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 👍

[@aaqibhameed2972]

Superb sir 👏👏❤️

[@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.

[@sanjanasprakash6134]

In playlist this video is included?

[@shahabkaram2439]

Simply Splendid 😍

[@hussainbiology]

thanks for appreciation

[@sanjanaSingh13]

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

[@hussainbiology]

all the best Sanjana..... keep sharing

[@RGMX92]

Great video.

[@khusirai7231]

Thanks 😊💗

[@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

[@barnalisinha4705]

Hats off to ur creativity sir ...

[@hussainbiology]

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

[@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

[@rivercuperus1158]

loved the video!

[@evamadaan4933]

As expected its amazingly done

[@hussainbiology]

thanks Eva for appreciation

[@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

[@bipashasdiary8611]

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

[@monicadupont9606]

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

[@hussainbiology]

Glad to hear that

[@dreamer5911]

Thank you sir

[@Islamicandlearning]

Great sir

[@snehaldesai4423]

What happens to histones in s phase during replication of dna

[@fatmamamdouh4661]

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

[@nafisagambhir]

Amazing😎😎😍😍

[@hussainbiology]

thanks for appreciation

[@SciBasics_seemashailjanand123]

Nice explanation @Sci Basics

[@hussainbiology]

thanks for appreciation..Glad it helps ✌️

[@seerapumeghanareddy2450]

Superb

[@smilodon2344]

I finally found it 🎉

[@TRADERAMODKUMAR]

ohhh great excellent

[@shwethakrishna3716]

Superb sir.. it's amazing teaching

[@hussainbiology]

thanks for appreciation..✌️✌️✌️

[@folawiyosulaimon1647]

no video of checkpoint pathway of G2

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helps a lot before exam

[@shahidarazzaq8980]

Good ❤❤❤❤

[@biology_mcqs3037]

👏👏👏

[@hussainbiology]

✌️✌️

[@bandayiqbal8097]

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

[@hussainbiology]

unable to understand you question sir ??

[@gameplayslemono]

He is asking about DNA replication, during which leading and lagging strands produced.

[@gameplayslemono]

During DNA replication, is it possible to initiate transcription as well

[@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 ..

[@mehwishnisar1177]

💜

[@ismailnadaf24077]

👌👌👌

[@subhadipdas2482]

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[@sulimankhan777]

Can you convert this video in urdu

[@KanchanKumari-vm6cc]

Hey shiv guru mere life khusi hi Khushi rhe

[@asimalizakir5456]

Well ♥️♥️

[@nifat5203]

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

[@hussainbiology]

thanks for appreciation..Glad it helps ✌️

[@Abhishek-iz6lw]

Waiting 😆😆😊😁

[@rumanatuli134]

nice presentation

[@hussainbiology]

thanks for appreciation..Glad it helps

[@sunrisechannel6246]

Nice explanation

[@hussainbiology]

thanks for appreciation..Glad it helps ✌️

[@govindtomar5024]

Can we get the notes of the same in pdf

[@SubhranshuSahu01]

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

[@renaissance_bhattacharya367]

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

[@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

[@munatamang2573]

I need notes sir.

[@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

[@shaikhussain5356]

Mera naam bi hussain

[@abhimasih2960]

Clean nhi dikhta hai

[@hussainbiology]

Turn into 720p

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Sir nots

[@karimulrahman2676]

Thank you sir

[@learningisfun3246]

Thank you sir

[@hussainbiology]

Welcome

[@afshiyashaik3312]

Thank you sir

[@hussainbiology]

Thanks for appreciation..Glad it helps ✌️