The adjective clause in the sentence, "Mike, whose ancestors came from Ireland marched in the St. Patrick’s Day Parade" is: "Whose ancestors came from Ireland."
An adjective clause or relative clause is a group of words that serve the function of adding further meaning or providing further information about the noun in the sentence.
In the sentence above, the clause, "whose ancestors came from Ireland," provides more information about the origin of Mike.
Learn more about the adjective clause here:
https://brainly.com/question/4038456
