epididymis molecular composition trait epididymis ribonucleic acid amount 2026-01-13T20:04:33Z CMO:0003332 The proportion, quantity, or volume of ribonucleic acid in the elongated structure connected to the posterior surface of the testes that transports, stores, and matures spermatozoa between testes and vas deferens. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds. Trait.ontology VT:0011273