Final answer:
Transcription is the process of copying genetic information from DNA into RNA. Different types of RNA have specific functions in the cell, such as coding for proteins or assisting in protein synthesis.
Step-by-step explanation:
The process of copying genetic information from DNA into RNA is called transcription. Various types of RNA are produced, each with different functions. mRNA molecules code for proteins, tRNA molecules act as adaptors for protein synthesis, rRNA molecules are integral components of the ribosome, and snRNA molecules are important in the splicing of RNA transcripts.