DNA of mitochondria is present in which of the following?

Permitochondrial space

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Matrix

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Cristae

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Cytoplasm

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Solution

The correct option is B Matrix
A substance enclosed by the inner membrane of mitochondria and carries various respiratory enzymes.
The matrix of a mitochondrion contains DNA, RNA, ribosomes (55S to 70S), lipids, granules of calcium phosphate, manganese, etc. and enzymes of the Krebs cycle.
DNA is generally circular. It is naked with or without association with histones.

Suggest Corrections

Organelle / organism	Type of DNA
(A) Chloroplast	(p) Double stranded circular DNA
(B) Mitochondria	(q) cpDNA
(C) E. coli	(r) Single stranded circular DNA