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Firysau sy’n effeithio ar wartheg ydy’r cyd-destun: BVDV is a small (50 nanometres diameter) simple virus made up of three envelope proteins and an inner capsid protein surrounding a single strand of positive sense RNA Ai gwefr positif ydy’r cyfieithiad cywir? Sent from Mail for Windows 10 ######################################################################## To unsubscribe from the WELSH-TERMAU-CYMRAEG list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=WELSH-TERMAU-CYMRAEG&A=1