wich of the following is not required for protein synthesis

1. t-RNA
2. r-RNA
3. m-RNA
4. none of these

The answer is none of these as all the three types of RNA are important for protein synthesis. Transfer RNA is helpful in reading the codon language and arranging amino acids accordingly. Ribosomal RNA provides the site for protein synthesis and Messanger RNA transfers the information from the DNA so that the appropriate protein is synthesised.