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Are all of the mitochondrial proteins encoded by mitochondrial DNA?

aj20386

wrote...

Posts: 735

Rep:

6 years ago

Are all of the mitochondrial proteins encoded by mitochondrial DNA?

Are all of the mitochondrial proteins encoded by mitochondrial DNA?

What will be an ideal response?

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1 Reply

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junyan

wrote...

#1

6 years ago

Ans: Most mitochondrial proteins are encoded by nuclear DNA, translated in the cytoplasm and imported into mitochondria. The mitochondrial DNA of mammals only encodes 13 proteins and fewer than 20 noncoding RNAs, such as tRNAs and rRNAs. Mitochondrial genes are transcribed and translated within the organelle, using organelle-specific RNA polymerase and ribosomes.

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