A new study by researchers from the Institute for Research in Biomedicine (IRB) Barcelona reveals the evolution of human life by shedding light on the origins and expansion of our genetic code. The team discovered that this genetic code - the universal set of rules that all of the Earth's organisms use to translate genetic sequences of DNA and RNA into amino acids - has a fundamental limit to its evolution that it hit more than 3,000 million years ago.
The team discovered that the genetic code evolved to include a maximum of 20 amino acids and that it is unable to grow any larger than this due to a limit in its transfer RNAs, which are the molecules that act to interpret the language of genes and that of the proteins that the code serves as a blueprint to create.
This fundamental limit led to an abrupt halt in the complexity of life more than 3,000 million years ago, prior to the evolution of bacteria, eukaryotes and archaebacteria, which all use the same genetic code to craft proteins using genetic information.
More at:
http://www.hngn.com/articles/198642/20160502/fundamental-limit-genetic-code-reveals-why-evolution-halted-over-3-000-million-years-ago.htm-------
We have another way to track you. Yay it's so awesome!
