Question

Distinction of prokaryota and eukaryota is mainly based on

• A. Nucleus
  
• B. Cell organelles
• C. Chromosomes
  
• D. All of the above

Answer 1

Answer: (D)

All of the above

Prokaryotes lack membrane bound organelles including the nucleus, chloroplast, mitochondria etc., unlike that of the prokaryotes. The chromosome of a prokaryote is usually circular lacking centromeres and introns. While the eukaryotic chromosome is linear with centromere and kinetochores. They have exons intervened by introns.
Thus both differ vastly in their basic cellular mechanisms especially in transcription and translation.
So, the answer is option (D)- 'All of the above'.