The nearly universal nature of the genetic code supports the view that:
- All living organisms share a common ancestor
- Nucleic acids were the first living things
- Proteins are a secondary importance of living systems
- The protein composites of all living organisms is the same
- There is redundancy in the genetic code
The correct answer is "all living organisms share a common ancestor". The current theory of evolution is that the genetic code was developed early by very primitive organisms. The organisms used the genetic code to make building blocks (amino acids) that were then used to make proteins. These building blocks could be made into very different types of proteins ...
This solution helps one understand the universal nature of the genetic code.