Question

What is the contribution of cytoplasmic DNA in cells to total DNA?

• A. 1 to 5%
• B. 45 to 50%
• C. 65 to 75%
• D. 95 to 99%

Answer 1

Answer: (A)

1 to 5%

Cytoplasmic DNA occurs in the cytoplasm (in mitochondria and in chloroplasts) and contributes for 1-5% of the total cellular DNA, whereas the nuclear DNA is found in the nucleus and accounts for a major portion of cellular DNA (95-99%).

Thus, the correct answer is option A.