Are the three important types of RNA copy of RNA (CRNA), messenger RNA (mRNA), and transfer RNA (tRNA)?

The correct answer to this question is False. The three types of RNA are messenger RNA, ribosomal RNA, and Transfer RNA. These are often abbreviated as mRNA, rRNA, and tRNA. Messenger RNA is created when DNA is copied in the central dogma's first step. Ribosomal RNA is what forms the structure of ribosomes.

Transfer RNA helps in getting the chain of amino acids together. All of these types of RNA work together to take DNA and transfer it into protein. A great way to understand the difference between DNA and RNA is that DNA is transcribed, RNA is transferred, and both works to create protein.