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NEET2005ZoologyPrinciples of Inheritance and VariationActual

Genes for cytoplasmic male sterility in plants are generally located in:

Options

  1. Amitochondrial genome
  2. Bchloroplast genome
  3. Cnuclear genome
  4. Dcytosol.

Correct answer

A. mitochondrial genome

Step-by-step solution

The genes, located outside of nucleus (i.e., within the cytoplasm) also governes some traits, are referred to as plasmogenes or cytoplasmic genes. Cytoplasmic male sterility (i.e., dominance of female cytoplasmic genes over male is due to plasmogenes located in mitochondrial DNA (mtDNA). Related Theory Male sterility in plants is often cytoplasmically based and maternally inherited. Male sterile plants produce no functional pollen, but do produce viable eggs. Cytoplasmic male sterility is used in agriculture to fac

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