MCQOPTIONS
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| 1. |
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» B. DNA and enzymes are only present in the most advanced cells | |