Nouns ending in -a (often Latin or scientific) add -e to form the plural.
Rna is regular. It follows the -ae Addition rule.
Use plural verbs: "The rnae are ready" (not "is ready").
Yes. The plural rnae is standard across all English variants.
The word rna follows the standard English pluralization rule. When forming the plural, rna becomes rnae. This follows the -ae Addition pattern, which is one of the most common plural rules in English.
Understanding why rna becomes rnae helps with spelling and pronunciation. Nouns ending in -a (often Latin or scientific) add -e to form the plural.
When using rnae in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The rnae are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.