Are long non coding RNAs as conserved in sequence as protein coding genes?
['Most lncRNAs are under lower sequence constraints than protein-coding genes and lack conserved secondary structures, making it hard to predict them computationally.', 'hey are under stronger selective pressure than neutrally evolving sequences-particularly in their promoter regions, which display levels of selection comparable to protein-coding genes.', 'bout one-third seem to have arisen within the primate lineage.']
['No. Most long non coding RNAs  (lncRNAs) are under lower sequence constraints than protein-coding genes.']
['no']