Which are the main types of RNA?

The main types of RNA essential for the processes of transcription and translation in cells are messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA).

mRNA plays a critical role in conveying genetic information from DNA to the ribosome, where proteins are synthesized. It is synthesized during transcription and serves as a template for protein synthesis.

tRNA is crucial for the translation process, where it helps decode the mRNA sequence into a protein by bringing the appropriate amino acids to the ribosome. Each tRNA molecule is specific to one amino acid and contains an anticodon that pairs with the corresponding codon on the mRNA.

rRNA is a primary component of ribosomes, the molecular machines that facilitate the translation of mRNA into proteins. It provides structural support and catalyzes the formation of peptide bonds between amino acids during protein synthesis.

The combination of these three types of RNA is essential for the flow of genetic information and the synthesis of proteins, making answer C the accurate response. Other choices contain elements that either do not correspond to types of RNA or include types of nucleic acids that are not classified as RNA. For example, DNA is not a type of RNA, and cDNA refers to complementary DNA synthesized from