Extranuclear inheritance occurs in ...... .

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$(A)$ Extranuclear inheritance, also known as cytoplasmic inheritance, refers to the transmission of genes present in cytoplasmic organelles like mito

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Killer Paramecium

Vedclass · Answer

$(A)$ Extranuclear inheritance, also known as cytoplasmic inheritance, refers to the transmission of genes present in cytoplasmic organelles like mitochondria or chloroplasts, or other cytoplasmic factors. In $Paramecium$, the 'killer' trait is determined by cytoplasmic particles called $\kappa$ particles. These $\kappa$ particles contain $DNA$ and are capable of self-replication, which is a classic example of extranuclear or cytoplasmic inheritance. Therefore, the correct option is $A$.

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