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Maharashtra State BoardSSC (English Medium) 10th Standard

Stages of Meiosis: Meiosis I

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  • Key Points: Meiosis I
Maharashtra State Board: Class 10

Key Points: Meiosis I

  • Meiosis is a two-stage process: Meiosis I and Meiosis II, responsible for forming haploid gametes from diploid germ cells.
  • Prophase I is a complex phase subdivided into five stages where homologous chromosomes pair up and undergo crossing over, enabling genetic recombination.
  • In Metaphase I, homologous pairs (not sister chromatids) align along the equatorial plate, attached to spindle fibers from opposite poles.
  • During Anaphase I, homologous chromosomes are separated and pulled to opposite poles, reducing the chromosome number by half.
  • Telophase I results in the formation of two haploid daughter cells, each with half the chromosome number, setting the stage for Meiosis II.

Shaalaa.com | Meiosis I - Introduction

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Meiosis I - Introduction [00:01:48]
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