Which of the following has been used as an evidence that primitive life forms lacked both DNA and enzymes?
A. RNA can both code genetic information and act as a catalyst
B. DNA and enzymes are only present in the most advanced cells
C. Advanced cells lack RNA
D. All of the above
Answer:A
Which of the following has been used as an evidence that primitive life forms lacked both DNA and enzymes?
A. RNA can both code genetic information and act as a catalyst B. DNA and enzymes are only present in the most advanced cells C. Advanced cells lack RNA D. All of the above