cartilage molecular composition trait cartilage ribonucleic acid amount 2025-10-22T12:44:06Z CMO:0003346 CMO:0004114 The proportion, quantity, or volume of ribonucleic acid in nonvascular, resilient, flexible connective tissue found primarily in joints, walls of the thorax, and tubular structures, but which also comprises most of the skeleton in early fetal life; some species have skeletons that are completely composed of cartilage which is never ossified. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds. Trait.ontology VT:0011234 cartilage RNA amount connective tissue ribonucleic acid amount