What is "cells divide?

Cells divide through a process called the Cell Cycle. This cycle ensures accurate duplication and segregation of genetic material.

  • Purpose: Cell division is crucial for growth, repair, and reproduction.
  • Types: There are two main types of cell division:
    • Mitosis: Produces two identical daughter cells. This is for growth and repair in somatic (body) cells.
    • Meiosis: Produces four genetically different daughter cells (gametes – sperm and egg). This is for sexual reproduction.
  • Mitosis Phases: Mitosis involves several phases:
    • Prophase: Chromosomes condense.
    • Metaphase: Chromosomes align at the metaphase plate.
    • Anaphase: Sister chromatids separate.
    • Telophase: Nuclear envelope reforms.
    • Cytokinesis: Cytoplasm divides, resulting in two separate cells.
  • Meiosis Phases: Meiosis involves two rounds of division (Meiosis I and Meiosis II), each with phases similar to Mitosis.
  • Regulation: Cell division is tightly regulated by various internal and external signals to prevent uncontrolled growth, which can lead to cancer.
  • Errors: Errors in cell division can lead to genetic mutations, contributing to developmental problems or diseases.