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Standard XII
Biology
Eukaryotic Cell
Extranuclear ...
Question
Extranuclear genes are found in
A
Plastids, not inherited
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B
Plasmid, not inherited
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C
Mitochondria, inherited from male
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D
Mitochondria, inherited from female
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Solution
The correct option is
D
Mitochondria, inherited from female
Mitochondrial DNA (mtDNA) or extranuclear genes is genetic material found in mitochondria. It is passed down from mothers to both sons and daughters.
It can be inherited only from females as male's mitochondrial DNA is destroyed during fertilisation.
So, the correct answer is 'Mitochondria, inherited from female'.
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