prokaryan造句

• A comprehensive'origin of sex as vaccination'theory proposes that eukaryan sex-as-syngamy ( fusion sex ) arose from prokaryan unilateral sex-as-infection when infected hosts began swapping nuclearised genomes containing coevolved, vertically transmitted symbionts that provided protection against horizontal superinfection by more virulent symbionts.
• It's difficult to find prokaryan in a sentence. 用prokaryan造句挺難的