Question

The contribution of cytoplasmic DNA in the total DNA of a cell

• A. 90-99%
• B. 65-75%
• C. 35-45%
• D. 1-5%

Answer 1

The correct option is D 1-5%

Nucleic acids in an organism consist of both DNA and RNA. Deoxyribonucleic acid (DNA) is found mainly in the nucleus of the cell, while Ribonucleic acid (RNA) is found mainly in the cytoplasm of the cell although it is usually synthesized in the nucleolus. The DNA is present as the extrachromosomal material in the organelle like mitochondria and chloroplast which are present in the cytoplasm. The extrachromosomal DNA is often used in research of replication because it is easy to identify and isolate. It counts for only 1-5% of total DNA present in the cell.
So, the correct answer is option D.