There are three major types of RNA, each encoded by its own gene. Which types are they?

There are three major types of RNA, each encoded by its own gene. Which types are they?

• A. tRNA, rRNA, snRNA
• B. miRNA, siRNA, piRNA
• C. mRNA, snRNA, rRNA
• D. mRNA, tRNA, rRNA

Answer: (D)

mRNA, tRNA, and rRNA are the three main RNA types essential for protein synthesis. Each is produced from its own set of genes, reflecting their distinct roles in the flow of genetic information. Messenger RNA carries the genetic message from DNA to the ribosome, providing the template that specifies the sequence of amino acids. Transfer RNA acts as the adaptor, bringing the correct amino acids to the ribosome by recognizing codons on mRNA through its anticodon. Ribosomal RNA makes up the structure of the ribosome itself and participates in catalyzing the formation of peptide bonds during translation. While other RNA classes exist—such as snRNA involved in RNA processing and regulatory small RNAs like miRNA, siRNA, and piRNA—these three are the primary RNA types directly tied to translating genetic information into proteins.

mRNA, tRNA, and rRNA are the three main RNA types essential for protein synthesis. Each is produced from its own set of genes, reflecting their distinct roles in the flow of genetic information. Messenger RNA carries the genetic message from DNA to the ribosome, providing the template that specifies the sequence of amino acids. Transfer RNA acts as the adaptor, bringing the correct amino acids to the ribosome by recognizing codons on mRNA through its anticodon. Ribosomal RNA makes up the structure of the ribosome itself and participates in catalyzing the formation of peptide bonds during translation. While other RNA classes exist—such as snRNA involved in RNA processing and regulatory small RNAs like miRNA, siRNA, and piRNA—these three are the primary RNA types directly tied to translating genetic information into proteins.