Arrange the principal forms of RNA in order of abundance from LEAST abundant to MOST abundant.
A)tRNA,rRNA,mRNA
B)mRNA,tRNA,rRNA
C)rRNA,tRNA,mRNA
D)tRNA,mRNA,rRNA
E)mRNA,rRNA,tRNA

Question

Quizplus · Accepted Answer

mRNA is the least abundant because it represents the transcripts of genes being expressed at any given time, which is a small fraction of the genome. tRNA is more abundant as it is needed for the translation of all mRNAs into proteins. rRNA is the most abundant as it is a major component of ribosomes, which are needed in large numbers for protein synthesis.

Arrange the Principal Forms of RNA in Order of Abundance