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NEET2010BotanyCell - The Unit of LifeActual

Which one of the following has its own DNA?

Options

  1. AMitochondria
  2. BDictyosome
  3. CLysosome
  4. DPeroxisome

Correct answer

A. Mitochondria

Step-by-step solution

In mitochondria, the inner membrane space is filled with a matrix which contains dense granules along with ribosomes and mitochondrial DNA. The mitochondrial DNA is circular in nature. There number varies from 2-6. Besides DNA, a mitochondrion has RNA and its ribosomes also. Thus, a complete protein synthesizing machinery is present in mitochondria, which suggests the semi-autonomous nature of mitochondria. Dictyosome, lysosome and peroxisome do not have their own DNA.

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