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Anna Nagar River View Colony, Chennai, India - 600040
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Class Location
Online class via Zoom
At the Institute
NEET Subjects
Chemistry, Biology
Class Location
Online class via Zoom
At the Institute
Board
ICSE, State, CBSE, International Baccalaureate
Preferred class strength
One on one/ Private Tutions, Group Classes
Subjects taught
Chemistry, Hindi, Biology, Mathematics, History, Science
Class Location
Online class via Zoom
At the Institute
Board
IGCSE, ICSE, State, CBSE
Preferred class strength
One on one/ Private Tutions, Group Classes
Subjects taught
Chemistry, Science, Biology, Hindi
Class Location
Online class via Zoom
At the Institute
Board
State, AS/A levels, ISC/ICSE, CBSE, NIOS
Preferred class strength
One on one/ Private Tutions, Group Classes
Subjects taught
Biology, Chemistry, Biotechnology, Environmental science, Hindi, Hindi Language
Class Location
Online class via Zoom
At the Institute
Board
ICSE, State, CBSE, International Baccalaureate, NIOS
Preferred class strength
One on one/ Private Tutions, Group Classes
Subjects taught
Chemistry, Biology, Hindi, History, Science
Class Location
Online class via Zoom
At the Institute
Board
State, AS/A levels, ISC/ICSE, CBSE, NIOS
Preferred class strength
One on one/ Private Tutions, Group Classes
Subjects taught
Chemistry, Biotechnology, Biology, Environmental science
Class Location
Online class via Zoom
At the Institute
BTech Biotechnology subjects
Immunotechnology, Microbiology, Intellectual Property Rights And Ethical Issues In Biotechnology, Industrial Biotechnology, Environmental Science And Engineering, Tissue Engineering, Plant And Animal Biotechnology, Waste Management, Genetic Engineering, Cell And Molecular Biology, Biochemistry, Bioorganic Chemistry
BTech Branch
BTech Biotechnology Engineering
Type of class
Regular Classes, Crash Course
Class strength catered to
One on one/ Private Tutions, Group Classes
Answered on 24/05/2025 Learn Animal cell culture
Ask a Question
Post a Lesson
## **Cell Cycle Overview**
The **cell cycle** is the sequence of events that a cell goes through from one division to the next. It has **two main phases**:
1. **Interphase** – the preparatory phase
2. **M Phase (Mitotic Phase)** – the actual cell division
---
### **1. Interphase** *(Preparation phase; about 90% of the cell cycle)*
It has **three sub-phases**:
#### **G₁ Phase (Gap 1)**
* Cell grows in size.
* Organelles duplicate.
* Proteins and enzymes are synthesized.
* Cell is metabolically active.
* The cell decides whether to divide or not (can enter G₀ phase if not dividing).
#### **S Phase (Synthesis)**
* DNA replication occurs.
* Each chromosome duplicates to form sister chromatids.
* Centrosome also duplicates.
#### **G₂ Phase (Gap 2)**
* Cell prepares for mitosis.
* More growth, protein synthesis.
* DNA is checked for errors and repaired if needed.
* Microtubules begin to organize for spindle formation.
---
### **2. M Phase (Mitotic Phase)** *(Active division; 10% of cell cycle)*
It includes:
* **Karyokinesis**: Division of nucleus.
* **Cytokinesis**: Division of cytoplasm.
**Karyokinesis** is further divided into **four stages**:
#### **Prophase**
* Chromatin condenses into visible chromosomes.
* Each chromosome has two sister chromatids.
* The nuclear envelope starts to break down.
* Spindle fibers begin to form from centrosomes.
#### **Metaphase**
* Chromosomes line up at the cell’s equator (metaphase plate).
* Spindle fibers attach to the centromere of each chromosome.
#### **Anaphase**
* Sister chromatids are pulled apart by spindle fibers.
* They move to opposite poles of the cell.
* Each pole gets an identical set of chromosomes.
#### **Telophase**
* Chromosomes de-condense back into chromatin.
* Nuclear envelopes re-form around the two sets of chromosomes.
* Nucleolus reappears.
* Spindle fibers disassemble.
---
### **Cytokinesis**
* Follows telophase.
* Cytoplasm divides, forming two daughter cells.
* In animal cells: cleavage furrow forms.
* In plant cells: cell
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Class Location
Online class via Zoom
At the Institute
NEET Subjects
Chemistry, Biology
Class Location
Online class via Zoom
At the Institute
Board
ICSE, State, CBSE, International Baccalaureate
Preferred class strength
One on one/ Private Tutions, Group Classes
Subjects taught
Chemistry, Hindi, Biology, Mathematics, History, Science
Class Location
Online class via Zoom
At the Institute
Board
IGCSE, ICSE, State, CBSE
Preferred class strength
One on one/ Private Tutions, Group Classes
Subjects taught
Chemistry, Science, Biology, Hindi
Class Location
Online class via Zoom
At the Institute
Board
State, AS/A levels, ISC/ICSE, CBSE, NIOS
Preferred class strength
One on one/ Private Tutions, Group Classes
Subjects taught
Biology, Chemistry, Biotechnology, Environmental science, Hindi, Hindi Language
Class Location
Online class via Zoom
At the Institute
Board
ICSE, State, CBSE, International Baccalaureate, NIOS
Preferred class strength
One on one/ Private Tutions, Group Classes
Subjects taught
Chemistry, Biology, Hindi, History, Science
Class Location
Online class via Zoom
At the Institute
Board
State, AS/A levels, ISC/ICSE, CBSE, NIOS
Preferred class strength
One on one/ Private Tutions, Group Classes
Subjects taught
Chemistry, Biotechnology, Biology, Environmental science
Class Location
Online class via Zoom
At the Institute
BTech Biotechnology subjects
Immunotechnology, Microbiology, Intellectual Property Rights And Ethical Issues In Biotechnology, Industrial Biotechnology, Environmental Science And Engineering, Tissue Engineering, Plant And Animal Biotechnology, Waste Management, Genetic Engineering, Cell And Molecular Biology, Biochemistry, Bioorganic Chemistry
BTech Branch
BTech Biotechnology Engineering
Type of class
Regular Classes, Crash Course
Class strength catered to
One on one/ Private Tutions, Group Classes
Answered on 24/05/2025 Learn Animal cell culture
Ask a Question
Post a Lesson
## **Cell Cycle Overview**
The **cell cycle** is the sequence of events that a cell goes through from one division to the next. It has **two main phases**:
1. **Interphase** – the preparatory phase
2. **M Phase (Mitotic Phase)** – the actual cell division
---
### **1. Interphase** *(Preparation phase; about 90% of the cell cycle)*
It has **three sub-phases**:
#### **G₁ Phase (Gap 1)**
* Cell grows in size.
* Organelles duplicate.
* Proteins and enzymes are synthesized.
* Cell is metabolically active.
* The cell decides whether to divide or not (can enter G₀ phase if not dividing).
#### **S Phase (Synthesis)**
* DNA replication occurs.
* Each chromosome duplicates to form sister chromatids.
* Centrosome also duplicates.
#### **G₂ Phase (Gap 2)**
* Cell prepares for mitosis.
* More growth, protein synthesis.
* DNA is checked for errors and repaired if needed.
* Microtubules begin to organize for spindle formation.
---
### **2. M Phase (Mitotic Phase)** *(Active division; 10% of cell cycle)*
It includes:
* **Karyokinesis**: Division of nucleus.
* **Cytokinesis**: Division of cytoplasm.
**Karyokinesis** is further divided into **four stages**:
#### **Prophase**
* Chromatin condenses into visible chromosomes.
* Each chromosome has two sister chromatids.
* The nuclear envelope starts to break down.
* Spindle fibers begin to form from centrosomes.
#### **Metaphase**
* Chromosomes line up at the cell’s equator (metaphase plate).
* Spindle fibers attach to the centromere of each chromosome.
#### **Anaphase**
* Sister chromatids are pulled apart by spindle fibers.
* They move to opposite poles of the cell.
* Each pole gets an identical set of chromosomes.
#### **Telophase**
* Chromosomes de-condense back into chromatin.
* Nuclear envelopes re-form around the two sets of chromosomes.
* Nucleolus reappears.
* Spindle fibers disassemble.
---
### **Cytokinesis**
* Follows telophase.
* Cytoplasm divides, forming two daughter cells.
* In animal cells: cleavage furrow forms.
* In plant cells: cell
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