Which RNA type carries the genetic message from DNA to the ribosome for protein synthesis?

• A. mRNA
• B. rRNA
• C. tRNA
• D. miRNA

Answer: (A)

The main concept here is that a messenger RNA carries the genetic instruction from DNA to the ribosome where proteins are built. During transcription, the gene’s sequence is copied into mRNA, which then travels to the ribosome. The ribosome reads the mRNA in codons, and each codon specifies an amino acid. Transfer RNA brings the matching amino acids and helps link them together to form a protein. The other RNA types have different roles: rRNA is a structural/catalytic part of the ribosome, tRNA delivers amino acids to the ribosome, and miRNA regulates gene expression by binding to mRNA and affecting its stability or translation. So the RNA that carries the genetic message from DNA to the ribosome for protein synthesis is messenger RNA.