Foundations in Microbiology 9th Edition by Kathleen Park Talaro, Barry Chess

Exercise 4

Critical thinking is the ability to reason and solve problems using facts and concepts. These question can be approached from a number of angles, and in most cases, they do not have a single correct answer.
The enzymes required to carry out transcription and translation are themselves produced through these same processes. Speculate which may have come first in evolution-proteins or nucleic acids-and explain your choice.