What type of RNA carries instructions from DNA in the nucleus to the ribosome?

The type of RNA that carries instructions from DNA in the nucleus to the ribosome is messenger RNA, commonly referred to as mRNA. During the process of transcription, mRNA is synthesized from a DNA template. This mRNA molecule then exits the nucleus and enters the cytoplasm, where it serves as a template for protein synthesis during translation. The ribosome reads the sequence of the mRNA and translates it into a specific amino acid sequence, assembling proteins accordingly.

In this context, tRNA is responsible for bringing amino acids to the ribosome based on the codons in the mRNA, rRNA is a structural component of ribosomes, and snRNA is involved in the splicing of pre-mRNA. Thus, mRNA plays a pivotal role as the intermediary between the genetic information stored in DNA and the eventual production of proteins.