A Climax is basically the most intense/action part of a story, so im guessing its line 3
<span>Most of the ethical discussions related to genome editing center around human germline editing. This is because changes made in the germline would be passed down to future generations.
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A prepositional phrase is a group of words that lacks either a verb or a subject, and that functions as a unified part of speech. It normally consists of a preposition and a noun or a preposition and a pronoun.