in Heredity and Variation by

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Mendel’s law of segregation

  • Mendel’s Law of Segregation: “Each individual possesses two factors for a particular character. At the time of formation of gametes each member of a pair of genes separate from one another so that each gamete carries only one factor.”
  • Here, the term used factor is later known as gene.
  • On the basis of monohybrid cross (a cross involving only one trait), Mendel introduced this law.
  • This law explains that hereditary factors are discrete and don’t blend when present together.
  • Law of segregation applies only to diploid organisms that form haploid gamete to reproduce sexually.