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Cool Cell Cycle Study Notes: Mitosis, G1 & G2 Checkpoints!

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Amala Seth

22/10/2025

Biology

Mitosis and The Cell Cycle

113

22 Oct 2025

5 pages

Cool Cell Cycle Study Notes: Mitosis, G1 & G2 Checkpoints!

user profile picture

Amala Seth

@amala_seth

Cell cycle and mitosisfundamentals guide detailing the stages, checkpoints,... Show more

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Page 2
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Page 5
1 / 5
Thursday 3rd November 2022
cell cycle:
8
7
minosis
Os
G1
Interphase
4
G2
Mitosis and the cell cycle.
GO
95
1 = cells increase in size, produ

Cell Cycle Overview

The cell cycle consists of distinct phases regulated by crucial checkpoints. During interphase, cells grow and prepare for division through G1, S, and G2 phases, followed by mitosis (M phase).

Definition: The cell cycle is the sequence of growth and division that cells go through to produce new daughter cells.

Highlight: Cells can temporarily or permanently exit the cycle into G0 phase to become specialized.

Example: During G1, cells increase in size and produce RNA and proteins before DNA replication in S phase.

Vocabulary: Checkpoints are regulatory mechanisms ensuring proper cell cycle progression at G1, G2, and M phases.

Thursday 3rd November 2022
cell cycle:
8
7
minosis
Os
G1
Interphase
4
G2
Mitosis and the cell cycle.
GO
95
1 = cells increase in size, produ

Mitosis Stages

Mitosis produces two genetically identical daughter cells through a series of carefully orchestrated stages. The process is essential for growth and repair of damaged tissues.

Definition: Mitosis is the process of nuclear division resulting in two genetically identical nuclei.

Highlight: Key stages include prophase, metaphase, anaphase, telophase, and cytokinesis.

Example: During prophase, chromosomes condense and become visible as the nuclear envelope breaks down.

Vocabulary: Sister chromatids are identical copies of DNA joined at the centromere.

Thursday 3rd November 2022
cell cycle:
8
7
minosis
Os
G1
Interphase
4
G2
Mitosis and the cell cycle.
GO
95
1 = cells increase in size, produ

Late Mitotic Events

The final stages of mitosis involve precise chromosome separation and cytoplasmic division.

Definition: Cytokinesis is the division of cytoplasm following nuclear division.

Highlight: Plant cells undergo cytokinesis differently, forming a cell plate rather than pinching in.

Example: During anaphase, spindle fibers pull sister chromatids to opposite poles using energy from mitochondria.

Thursday 3rd November 2022
cell cycle:
8
7
minosis
Os
G1
Interphase
4
G2
Mitosis and the cell cycle.
GO
95
1 = cells increase in size, produ

Cell Cycle Errors and Cancer

Disruptions in normal cell cycle regulation can lead to serious consequences, particularly cancer development.

Definition: Cancer is a group of diseases characterized by uncontrolled cell division.

Highlight: Tumor suppressor genes play a crucial role in preventing uncontrolled cell growth.

Example: UV light exposure can affect mitosis rates and potentially lead to cancer development.

Thursday 3rd November 2022
cell cycle:
8
7
minosis
Os
G1
Interphase
4
G2
Mitosis and the cell cycle.
GO
95
1 = cells increase in size, produ

Cancer Treatment Approaches

Cancer treatments often target specific stages of the cell cycle to prevent tumor growth.

Definition: Chemotherapy drugs work by disrupting various stages of the cell cycle.

Highlight: Treatments can target DNA replication or spindle formation during mitosis.

Example: Hair loss during chemotherapy occurs because rapidly dividing hair follicle cells are also affected by treatment.



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Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

Best app on earth! no words because it’s too good

Thomas R

iOS user

Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.

Basil

Android user

This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.

Rohan U

Android user

I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.

Xander S

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now

Paul T

iOS user

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

Best app on earth! no words because it’s too good

Thomas R

iOS user

Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.

Basil

Android user

This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.

Rohan U

Android user

I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.

Xander S

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now

Paul T

iOS user

 

Biology

113

22 Oct 2025

5 pages

Cool Cell Cycle Study Notes: Mitosis, G1 & G2 Checkpoints!

user profile picture

Amala Seth

@amala_seth

Cell cycle and mitosis fundamentals guide detailing the stages, checkpoints, and relationship with cancer development.

  • Comprehensive breakdown of cell cycle phases including G1, S, G2, and M phases
  • Detailed explanation of mitosis stages from prophase through cytokinesis
  • Critical role of ... Show more

Thursday 3rd November 2022
cell cycle:
8
7
minosis
Os
G1
Interphase
4
G2
Mitosis and the cell cycle.
GO
95
1 = cells increase in size, produ

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Cell Cycle Overview

The cell cycle consists of distinct phases regulated by crucial checkpoints. During interphase, cells grow and prepare for division through G1, S, and G2 phases, followed by mitosis (M phase).

Definition: The cell cycle is the sequence of growth and division that cells go through to produce new daughter cells.

Highlight: Cells can temporarily or permanently exit the cycle into G0 phase to become specialized.

Example: During G1, cells increase in size and produce RNA and proteins before DNA replication in S phase.

Vocabulary: Checkpoints are regulatory mechanisms ensuring proper cell cycle progression at G1, G2, and M phases.

Thursday 3rd November 2022
cell cycle:
8
7
minosis
Os
G1
Interphase
4
G2
Mitosis and the cell cycle.
GO
95
1 = cells increase in size, produ

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Mitosis Stages

Mitosis produces two genetically identical daughter cells through a series of carefully orchestrated stages. The process is essential for growth and repair of damaged tissues.

Definition: Mitosis is the process of nuclear division resulting in two genetically identical nuclei.

Highlight: Key stages include prophase, metaphase, anaphase, telophase, and cytokinesis.

Example: During prophase, chromosomes condense and become visible as the nuclear envelope breaks down.

Vocabulary: Sister chromatids are identical copies of DNA joined at the centromere.

Thursday 3rd November 2022
cell cycle:
8
7
minosis
Os
G1
Interphase
4
G2
Mitosis and the cell cycle.
GO
95
1 = cells increase in size, produ

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Late Mitotic Events

The final stages of mitosis involve precise chromosome separation and cytoplasmic division.

Definition: Cytokinesis is the division of cytoplasm following nuclear division.

Highlight: Plant cells undergo cytokinesis differently, forming a cell plate rather than pinching in.

Example: During anaphase, spindle fibers pull sister chromatids to opposite poles using energy from mitochondria.

Thursday 3rd November 2022
cell cycle:
8
7
minosis
Os
G1
Interphase
4
G2
Mitosis and the cell cycle.
GO
95
1 = cells increase in size, produ

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Cell Cycle Errors and Cancer

Disruptions in normal cell cycle regulation can lead to serious consequences, particularly cancer development.

Definition: Cancer is a group of diseases characterized by uncontrolled cell division.

Highlight: Tumor suppressor genes play a crucial role in preventing uncontrolled cell growth.

Example: UV light exposure can affect mitosis rates and potentially lead to cancer development.

Thursday 3rd November 2022
cell cycle:
8
7
minosis
Os
G1
Interphase
4
G2
Mitosis and the cell cycle.
GO
95
1 = cells increase in size, produ

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Cancer Treatment Approaches

Cancer treatments often target specific stages of the cell cycle to prevent tumor growth.

Definition: Chemotherapy drugs work by disrupting various stages of the cell cycle.

Highlight: Treatments can target DNA replication or spindle formation during mitosis.

Example: Hair loss during chemotherapy occurs because rapidly dividing hair follicle cells are also affected by treatment.

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.

Where can I download the Knowunity app?

You can download the app from Google Play Store and Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

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Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.9/5

App Store

4.8/5

Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

Best app on earth! no words because it’s too good

Thomas R

iOS user

Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.

Basil

Android user

This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.

Rohan U

Android user

I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.

Xander S

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now

Paul T

iOS user

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

Best app on earth! no words because it’s too good

Thomas R

iOS user

Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.

Basil

Android user

This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.

Rohan U

Android user

I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.

Xander S

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now

Paul T

iOS user