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