Question

What is the total amount of DNA present in mitochondria of Neurospora?

• A. 10%
• B. 40%
• C. 1%
• D. Nil

Answer 1

Answer: (C)

1%

The mitochondria possess self-replicated DNA and ribosomes and thus called as a semiautonomous organelle. The amount of DNA associated with mitochondria varies from 0.2% of the total cellular DNA in mouse liver cells to 20% in haploid yeast and to more than 99% in amphibian oocytes. Neurospora is the genus of Ascomycetes fungi which possess 1% of total cellular DNA in mitochondria.