DNA or Deoxyribonucleic acid is the genetic material that carries Information about an organism and is passed from parent to child. RNA or Ribonucleic acid is a nucleic acid that plays an important role in the production of proteins.
The Internet is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide.
PE is the challenge response to a traditional web strategy known as graceful degradation, meaning that the website is designed for a particular browser technology, and it would remain presentable or degrade even if older user agents were used.