Question

Which of the following is not a type of RNA?

1) nRNA (nuclear RNA)
2) MRNA (messenger RNA)
3) rRNA (ribosomal RNA)
4) tRNA (transfer RNA)

Answer 1

The term 'nuclear RNA (nRNA)' is not traditionally recognized among the major types of RNA, which include mRNA, rRNA, and tRNA.

Step-by-step explanation:

The type of RNA that is not traditionally recognized among the major types of RNA is nuclear RNA (nRNA). The three primary types of RNA that are well known and extensively studied in biology are messenger RNA (mRNA), which carries the genetic instructions from DNA to the cytoplasm, ribosomal RNA (rRNA), which forms the integral structural and enzymatic part of ribosomes, and transfer RNA (tRNA), which brings amino acids to the ribosomes where proteins are synthesized. While there are also other types of RNA, such as microRNA (miRNA) and small nuclear RNA (snRNA), nRNA is not typically listed among the major types.