MRNA and tRNA are types of RNA. Messenger RNA, commonly known as mRNA, is synthesized by RNA polymerase II. mRNA is made from the transcription of DNA. mRNA serves as the link between genes and proteins. It carries the message for the protein to be synthesized. mRNA is produced in the nucleus. It is then transported into the cytosol, where it is translated by ribosomes with help from tRNA to form a protein.
Transfer RNA, commonly referred to as tRNA, is synthesized by RNA polymerase III. tRNA contains about 75 to 90 nucleotides in structure. It carries anticodon (a string of 3 key bases) that matches codons present on mRNA. Each amino acid has its own type of tRNA. It carries specific amino acid (anticodon) into the ribosome for translation. The correct tRNA will bind to its codon on the mRNA.
The two types of major RNAs are the messenger RNA (mRNA) and transfer RNA (tRNA). They are the first steps of protein synthesis known as protein-encoding. mRNA serves as the conveyor of messages between genes proteins tRNA on the other hand, is the carrier of specified amino acid into the ribosome for the synthesis of protein.
mRNA does it functions inside the nucleus and the cytoplasm whereas tRNA functions only at the cytoplasm. The molecule structure of mRNA is linear and single-stranded while mRNA is an L-shaped molecule. After the transcription, mRNA is destroyed but tRNA gets reactivated when it attaches to a second amino acid-specific to it during the process of transcription.