Question

How many of the features given are associated with mitochondria?
Single circular DNA molecule, RNA, 70S ribosomes, aerobic respiration, carbon assimilation, detoxification.

• A. Six
• B. Four
• C. Five
• D. Three

Answer 1

The correct option is B Four

Mitochondria are known as the power house of the cell. These are associated with cellular respiration (aerobic) and energy generation of the cell.

• Mitochondria have single small circular molecule of DNA as their genetic material.
• The ribosomes are of 70S type.
• Mitochondria regulates cellular metabolism and hence, detoxifies the cell by removing toxins and other chemical substances.

Hence, among all the options given in the question, single circular DNA molecule, 70S ribosomes, aerobic respiration and detoxification are associated with mitochondria.

So, the correct answer is 'Four'.