Question

Prokaryotes have circular DNA while eukaryotes have linear chromosomes. This is evidence that

• A. All eukaryotes are more closely related to each other than they are to prokaryotes.
• B. Eukaryotes are the ancestors of prokaryotes.
• C. Eukaryotes are the direct descendants of modern prokaryote species.
• D. Prokaryote DNA typically has more associated proteins than eukaryotic DNA.

Answer 1

Answer: (C)

Eukaryotes are the direct descendants of modern prokaryote species.

Eukaryotes are direct descendants of the prokaryotes as the linear strand of DNA has evolved from the prokaryotic DNA due to addition of repeats to the circular DNA and its further evolution prevented it from ligating back to the circular forms.

So, the correct answer is 'Eukaryotes are the direct descendants of modern prokaryote species'