Cell Cycle and Mitosis
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- čas přidán 26. 07. 2024
- The cell cycle, or cell-division cycle, is the series of events that take place in a cell leading to duplication of its DNA (DNA replication) and division of cytoplasm and organelles to produce two daughter cells.
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DNA Replication : • DNA Replication Made Easy
In cells with a nucleus, as in eukaryotes, the cell cycle is also 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 undergoes DNA replication preparing it for cell division. During the mitotic phase, the replicated chromosomes and cytoplasm separate into two new daughter cells. To ensure the proper division of the cell, there are control mechanisms known as cell cycle checkpoints.
The cell-division cycle is a vital process by which a single-celled fertilized egg develops into a mature organism, as well as the process by which hair, skin, blood cells, and some internal organs are renewed. After cell division, each of the daughter cells begin the interphase of a new cycle. Although the various stages of interphase are not usually morphologically distinguishable, each phase of the cell cycle has a distinct set of specialized biochemical processes that prepare the cell for initiation of cell division.
Sorry for the Mistake guys. Its "DNA REPLICATION" not "TRANSCRIPTION". 😁
Please make video in protoplast isolation, culture and fusion
ok thank you for the correction, you could add it as a popping message on the video if you want to help people who have not seen your comment.
I also have a question: in the S phase the DNA is replicated, and on your illustration you use chromosomes , but later on in the mitotic phase you explain that the genetic material within the cell goes from random string to chromosome-shape, which comfuses me: could you clarify at which point of the cell cycle the genetic material is shaped as a chromosome? thank you
also mention where. thank u
4:43
And also you mentioned that chromosome number double during S phase which is wrong
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After ages you back..thanks for the vedio
really today i understood cell cycle and its divisions ur channel is best,loved it.
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Very glad to hear that. 😁
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Very long time waiting . Keep going on
Thanks
Hey man! where were you these many months..
Was busy with residency exam brother. Thanks for asking
@@MEDSimplified missed your explaination.
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Thank u so much for giving lot of information bro
Amazing video!!! Thanks so very much!!!!
Understandable....Hope this will help me in my exams
I got understood cell cycle clearly and my doubts vanished Thank u so much for this awesome video YOU explained very clearly thank u thank so much
4:30 The number of chromosomes does not double in S phase. The number of chromosomes remains the same (46 for humans), but each chromosome goes from having one chromatid (having a single DNA molecule) to having 2 sister chromatids (having 2 DNA molecules, with the old and new chromatid attached to each other).
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Very helpful. Thanks to Med simplified
THANKS ABRAR
No thanks. U r worth appreciating. It is our pleasure to have u on youtube
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Even I too wanted to know so
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Thanks for the patience and support
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Very easy explanation...Thanks.
It's very useful, thanks
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If I would have found this channel earlier I would have scored 100% in Anatomy and Physiology 2. I couldn't understand Mitosis and meiosis but now I do. Thanks so much for this video. Now we need meiosis!
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very good
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Sir.. If u can please make a video on how the regulations done by the Cyclins and CDK in the checkpoints of cell cycle.
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hello sir
, nice video of course .please help me understand haploid and diploid cells
Excellent 🙌❣️
That's great! Too much thanks 💐🌷🌷🌷
You are very welcome
Nice one
Tnx sir........nvr understood this b4 ....
Sir , is there any checkpoint between the G2 and S phase ??
Thanks May you please make a video on nutrition in plants
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great work. thanks for this and also other videos. I have one question that if there are checkpoint before "S" phase and 'M" , for any damage in DNA , then what about that genetic problems ?? why they are ? are these checkpoint do not catch these DNA damage which leads to genetic diseases ?? kindly guide me regarding this. thank you MEDSimplified
Mind-blowing
mas naintindihan ko pa to kesa sa teacher namin😀 thank you!
Hey you are back broo
Thanks for the patience bro
dear make one for meiosis too
After such a long time😊😊
Thanks for the patience 😁
please Dr i want link of video for meiosis lecture and i your explain really very nice
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Pls make for Meosis also
@ protein synthesis occur in G2 phase where as many organelles get double in G1 phase .
*I guess the content of chromatin material gets double not the chromosomes i.e the number of chromosomes remain same
Make vedio on meosis.... Plssss
Sir, pls make video on meiosis also
Hi! Where can I get the link for the worksheets? I upgraded to the highest level of member yesterday but it says "link will be added soon". Thanks! Amazing content.
You can find the links to dropbox on our members feed page on youtube
Please make a video on meiosis sir
How you make such type of videos. Please tell me about apps.
Please make the video separately for mitosis. And also please do video for meiosis because lot of confusions on there. Plzzzzzz do the video
Video on MITOSIS coming in a week. And on meiosis too
yeah plzzz......,
In S phase Replication no transcription
Sorry for the Mistake
Vah good attention
Perfect
6:54 Pro-metaphase is actually part of prophase. Some sources call it pro-metaphase and others call it late prophase, but it is the same events for either term. Both types of sources have for metaphase only the events related to the chromosomes lining up at the metaphase plate (which by the way is equatorial, not equitorial).
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:)
(:
Sir , what is the definition of the cell cycle checkpoints...??
Please answer this...I 'm very confused about this..... Thank you ... ☺☺
Super
Sir your voice 👌❤
Sir please be regular....
Was busy with my residency exam. Will upload now.
Bro make another vedio for meosis
Please can someone let me know where i can find this video notes? Like a pdf?
Hi medsimplified team can I have video on meiosis 🥺🙂
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In s phase replication occurs not transcription
Yeah it should be replication...
thank you for tolled about cell cycle
plz make video on meiosis
Will do!
There might be a slight error at 4: 35....in S phase, DNA is duplicated but no. Of chromosomes remains unchanged...you said no. Of chromosomes is doubled
U got another subscribe
You are most welcome on this channel buddy😁
@3.04 you mean to say karyokinesis is mitosis
Thank you. God is good.
Ah! Long time no see
Ahhh. Was busy with the residency exam😁 thank u for the support 😊
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Sir in S phase only amount of DNA gets doubled number of chromosomes remain constant.isnt it
POV u have finals tomorrow
at 4:42 min the process is Replication and not Transcription
for easy and better explanation see the video-
czcams.com/video/5RuzagEjsA8/video.html
4:40 Duplication of chromosomes is not accomplished by transcription, but by DNA replication.
En activation inhibit cell division
In S phase chromosomes number remains same