A single-stranded nucleic acid that performs critical functions during protein synthesis and comes in three forms: mRNA, tRNA, and rRNA.

A single-stranded nucleic acid that performs critical functions during protein synthesis and comes in three forms: mRNA, tRNA, and rRNA.

• A. DNA
• B. RNA
• C. Lipid
• D. Carbohydrate

Answer: (B)

RNA is the single-stranded nucleic acid involved in protein synthesis, existing in three key forms that work together in translation. Messenger RNA carries the genetic instructions from DNA to the ribosome so the sequence to be built is known. Transfer RNA delivers the correct amino acids and helps decode the mRNA codons, guiding the assembly of the protein chain. Ribosomal RNA is a structural and catalytic component of the ribosome, helping to form the site where amino acids are joined. The other options aren’t the RNA types directly mediating this process: DNA is the double-stranded storage form of genetic information, while lipids and carbohydrates are different classes of biomolecules not used to carry out transcription or translation.

RNA is the single-stranded nucleic acid involved in protein synthesis, existing in three key forms that work together in translation. Messenger RNA carries the genetic instructions from DNA to the ribosome so the sequence to be built is known. Transfer RNA delivers the correct amino acids and helps decode the mRNA codons, guiding the assembly of the protein chain. Ribosomal RNA is a structural and catalytic component of the ribosome, helping to form the site where amino acids are joined. The other options aren’t the RNA types directly mediating this process: DNA is the double-stranded storage form of genetic information, while lipids and carbohydrates are different classes of biomolecules not used to carry out transcription or translation.