Cytoplasmic Inheritance

Cytoplasmic Inheritance

February 18, 2022

Cytoplasmic inheritance

  • Cytoplasmic inheritance: Hereditary transmission dependent on the cytoplasm or the structures in cytoplasm rather than the nuclear genes. It is also known as maternal inheritance as genes are inherited by egg cytoplasm of mother. 
  • No linkage to nuclear genes
  • Do not follow Mendel’s law of inheritance 
  • Genes are segregated randomly and eventually one form predominates
  • Cytoplasmic inheritance is mediated by two organelles:
  • Mitochondrial Inheritance
  • Plastid (chloroplast inheritance)
  • Petite mutation in Sacharomyces cerevisae
  • Leaf variegation in Mirabilis jalapa plant determined by the mother example is eventually one form predominates​​

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