Question

Which of the following is the basis of the classification of three domain of life?

• A. rRNA
• B. Cell membrane
• C. Sensitivity to antibiotics
• D. All of the above

Answer 1

Answer: (D)

All of the above

The three-domain system includes the archae, eubacteria and eukaryota. This classification was given by Carl Woese. The classification is on the basis of three characters:

• There is a difference in the nucleotide sequence coding for the rRNA
  
• There is a difference in the molecules which comprise the structure of the cell membrane.
  
• There is difference towards the sensitivity to antibiotics.
  

Thus, the correct answer is option D.