Name: PptxGenJS Presentation
Uploaded: 2024-11-07
Duration: 3 min 1 s
Description: dreomrblme.com ID 206895191 g Piyapong Thongdumhyu.

dreomrblme.com ID 206895191 g Piyapong Thongdumhyu. 

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dreomrblme.com
ID 206895191 g Piyapong Thongdumhyu

Cell Division: The Fundamental Biological Process

Cell division is a critical process that underpins the growth, development, and reproduction of all living organisms. It involves the duplication of a cell's genetic material and its subsequent division into two or more daughter cells, ensuring the continuity of life.

What is Cell Division?. 1. Replication of Genetic Material. 

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Cell division begins with the duplication of a cell's chromosomes, ensuring that each daughter cell receives a complete set of genetic information.

The cell then undergoes a series of complex steps to divide its cytoplasm and organelles, forming two or more genetically identical daughter cells.

Cell division is essential for replenishing cells lost through natural processes, such as wear and tear or injury, maintaining the balance and function of tissues and organs.

CELL CYCLE. The Cell Cycle: Phases and Regulation. 

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The cell grows and prepares for DNA replication, ensuring it has the necessary resources and machinery to divide.

The cell's DNA is faithfully replicated, with each chromosome being duplicated to form two identical sister chromatids.

The cell continues to grow and prepare for cell division, ensuring the genetic material is accurately replicated and organized.

Telophase & Cytokinesi: Prophase prometaphase Metaphase. 

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Telophase & Cytokinesi:
Prophase prometaphase Metaphase

Chromosomes condense, and the nuclear envelope breaks down, preparing the cell for division.

Chromosomes align at the center of the cell, and the mitotic spindle attaches to the centromeres of each chromosome.

The sister chromatids are pulled apart by the mitotic spindle, moving towards opposite poles of the cell.

The nuclear envelope reforms, and the cell divides into two genetically identical daughter cells.

STAGES OF MEIOSIS Meiosis 1 (Homologous chromosomes separate) prophase I Telophase II Anaphase II CYTOKINESIS Metaphase 1 Metaphase II Meiosis II (Sister chzomosomes separate) dreomrblme.com Telophase I Anaphase I CYTOKINESIS Prophase 179364753 vectorMine. 

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STAGES OF MEIOSIS
Meiosis 1 (Homologous chromosomes separate)
prophase I
Telophase II
Anaphase II
CYTOKINESIS
Metaphase 1
Metaphase II
Meiosis II (Sister chzomosomes separate)
dreomrblme.com
Telophase I
Anaphase I
CYTOKINESIS
Prophase
179364753 vectorMine

The cell undergoes two consecutive cell divisions, reducing the chromosome number by half to produce haploid gametes.

The haploid cells further divide, creating four genetically unique gametes, such as sperm or egg cells.

Ø98e890. Importance of Cell Division in Living Organisms. 

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Importance of Cell Division in Living Organisms

Cell division is essential for the growth and development of multicellular organisms, allowing them to increase in size and complexity.

Cell division is crucial for replacing damaged or worn-out cells, maintaining the structure and function of tissues and organs.

Cell division, particularly meiosis, is necessary for the production of gametes, enabling sexual reproduction and genetic diversity.

Disorders and Diseases Related to Cell Division. Cancers. 

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Disorders and Diseases Related to Cell Division

Uncontrolled cell division can lead to the formation of tumors and the development of various types of cancer.

Errors in cell division can result in chromosomal abnormalities, leading to genetic disorders such as Down syndrome.

Impaired cell division and cellular senescence are associated with the aging process and the development of degenerative diseases.

Conclusion: The Significance of Understanding Cell Division. 

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Conclusion: The Significance of Understanding Cell Division

Understanding the complex process of cell division is crucial for advancing scientific knowledge, developing new medical treatments, and addressing a wide range of biological challenges. By studying this fundamental mechanism, we can unlock the secrets of life and continue to improve the human condition.

PptxGenJS Presentation

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