Question

Which of the following is devoid of DNA?

• A. Mitochondria
• B. Chloroplast
• C. Nucleus
• D. Lysosome

Answer 1

The correct option is D Lysosome

In a eukaryotic cell, the nucleus is the organelle that contains the genetic material (DNA) of the organism. The nucleus is a double membraned organelle that is also called the ‘brain of the cell’. It controls all the functions of the cell.

Mitochondria and chloroplasts are double membraned organelles that contain their own DNA. They are believed to have been once independent prokaryotic cells that have now become a part of the eukaryotic cell in a symbiotic relationship. The mitochondria and chloroplasts both contain circular double-stranded DNA.

Lysosomes are single membraned sac-like structures. They are devoid of DNA. These are rich in hydrolytic enzymes that can digest various food substances like carbohydrates, lipids and proteins. They are also called as the ‘suicide bags’ of the cell as it can digest non-functioning organelles and the whole cell as well if they are damaged or dead.