English: genetic code
Welsh: cod genetig
Subject: Iechyd
Welsh definition: The genetic code is the set of rules by which information encoded within genetic material (DNA or mRNA sequences) is translated into proteins by living cells.
Welsh context: Mae'r rhain yn digwydd pan fydd rhyw fath o anomaledd rhywiol, fel canlyniad i aflonyddu ar y cod genetig a/neu'r system hormonaidd sy'n effeithio ar y broses o wahaniaethu rhwng y ddau ryw. 
Plural: codau genetig