Which of the following RNA plays an important role as representative for the addition of amino acids to the polypeptide chain?
Which of the following RNA plays an important role as representative for the addition of amino acids to the polypeptide chain?
The correct option is B Adaptor RNA
A. Messenger RNA- mRNA is the most heterogeneous of the 3
types of RNA in terms of both base sequence and size. It carries complimentary
genetic code copied, from DNA during transcription, in the form of triplets of
nucleotides called codons.
B.Adapter RNA- tRNAs
are an essential component of translation, where their main function is the
transfer of amino acids during protein synthesis. tRNAs also act
as adapters in the translation of the genetic sequence of mRNA into proteins.
Thus, they are also called adapter molecules.
C. Ribozymes (RNA enzymes)- RNAs
are now known to adopt complex tertiary structures and act as biological
catalysts. Such RNA enzymes are known as ribozymes, and they exhibit many of
the features of a classical enzyme, such as an active site, a binding site for
a substrate and a binding site for a cofactor, such as a metal ion.
D. Small Nuclear RNA
(snRNA)-snRNA is involved in the processing of
pre-messenger RNA (pre-mRNA) into mature mRNA. They are very short, with an
average length of only 150 nucleotides.
So, the correct answer is "Adaptor RNA".
A. Messenger RNA- mRNA is the most heterogeneous of the 3 types of RNA in terms of both base sequence and size. It carries complimentary genetic code copied, from DNA during transcription, in the form of triplets of nucleotides called codons.
B.Adapter RNA- tRNAs are an essential component of translation, where their main function is the transfer of amino acids during protein synthesis. tRNAs also act as adapters in the translation of the genetic sequence of mRNA into proteins. Thus, they are also called adapter molecules.
C. Ribozymes (RNA enzymes)- RNAs are now known to adopt complex tertiary structures and act as biological catalysts. Such RNA enzymes are known as ribozymes, and they exhibit many of the features of a classical enzyme, such as an active site, a binding site for a substrate and a binding site for a cofactor, such as a metal ion.
D. Small Nuclear RNA (snRNA)-snRNA is involved in the processing of pre-messenger RNA (pre-mRNA) into mature mRNA. They are very short, with an average length of only 150 nucleotides.
