Hadi Biology 20

Centrioles Class 9th New Syllabus 2025 Biology
Contact Number 0302-7762964

Funny Conversation In Live Class 9th 🤣🤣|| Mitosis Class 9th New Book 2025

https://youtu.be/Cbfb84jCAfI

Mitosis Live Class Discussion

https://youtu.be/Cbfb84jCAfI

Mitosis Part 01 Class 9th 2025 | Season No 04 | Episode No 04 | Live Class Biology 2025

cell cycle class 9th new book biology 2025,cell cycle,biology,cell cycle and cell division class 11,cell cycle class 9th || season no 04 || episode no 01,9th class biology lecture,9th class biology chapter 5,online biology lecture 9th class,cell division class 9 biology,class 9 biology,icse class 10 biology cell cycle and cell division,biology grade 9 unit 5 cell cycle,biology grade 9 unit 5 cell cycle kpk textbook syllabus,significance of mitosis class 9
...................................................................................................................................................................
Follow the Hadi Academy (Education For All) channel on WhatsApp: https://whatsapp.com/channel/0029VagS...

Notes by Sir Hadi
📌 Introduction to Cell Cycle:
The cell cycle is the sequence of events that a cell goes through as it grows and divides. It includes periods of growth, DNA replication, and cell division.

It ensures that cells grow properly, replicate their DNA, and divide into two identical daughter cells.

🔄 Main Phases of the Cell Cycle:
1- Interphase:
Longest phase
Cell grows, performs its functions, and prepares for division

2-Mitotic Phase (M phase):
Includes mitosis and cytokinesis
Actual division of the cell takes place here

✂️ Mitosis – Definition and Stages
Mitosis is the type of cell division in which a parent cell divides to form two identical daughter cells, each having the same number of chromosomes as the parent.

🔁 Meiosis – Definition
Meiosis is a type of cell division that reduces the chromosome number by half, producing four non-identical daughter cells (gametes: s***m or egg), each with half the chromosomes of the parent cell.

❓ Conceptual MCQs
1. In which phase does DNA replication occur?
A) G1
B) G2
C) S
D) M
✔️ Correct Answer: C) S

2. Mitosis results in:
A) Four identical cells
B) Two identical cells
C) Four different cells
D) One large cell
✔️ Correct Answer: B) Two identical cells

3. What happens during metaphase?
A) Chromosomes disappear
B) Chromosomes line up in the center
C) DNA is copied
D) Cell grows
✔️ Correct Answer: B) Chromosomes line up in the center

4. Meiosis is important for:
A) Growth
B) Repair
C) Formation of gametes
D) Asexual reproduction
✔️ Correct Answer: C) Formation of gametes

5. In which stage of mitosis do chromatids move to opposite poles?
A) Prophase
B) Metaphase
C) Anaphase
D) Telophase
✔️ Correct Answer: C) Anaphase

✍️ Short Questions
1-What is the cell cycle?
2-Define mitosis.
3-Define meiosis.
4-Name the three phases of interphase.
5-What happens in the S phase?
6-What is cytokinesis?
7-Why is mitosis important?
8-How is meiosis different from mitosis?
9-Name the four main stages of mitosis.
10-In which type of cells does meiosis occur?
....................................................................................................................................................
For more details contact on this number 0302-7762964

Status Of Virus In Classification Class 9 - Episode No 10 - Season 02 - Corona Virus - Bacteriophage

Further Classification Of Domain Eukarya Class 9 _ Season No 02 _ Episode No 09 _ New Syllabus 2025

Classification The Three Domain System Class 9 In Urdu _ Episode 08 _ Season 02 _ New Syllabus 2025.mp4