Ethylene is a gaseous hormone, the simplest alkene gas and the first gas known to act as a hormone. It plays a key role in plant processes, most notably fruit ripening, but also influences leaf and flower senescence, and stem elongation.
__________ is a gaseous hormone
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This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.