The number of ncRNAs encoded within the human genome is unknown , however recent transcriptomic and bioinformatic studies suggest the existence of thousands of ncRNAs . , but see Since many of the newly identified ncRNAs have not been validated for their function , it is possible that many are non-functional .
However recent studies suggest the existence of thousands of ncRNAs . , but see Since the function of newly identified ncRNAs has not been proved , it is possible that many are non-functional .