AIIMS 2019 Botany Sporogenesis MCQ Question

Option D is correct because both Lycopodium and Equisetum are homosporous plants, meaning they produce only one type of spore that develops into a gametophyte capable of producing both male and female gametes. In contrast, Salvinia and Selaginella are heterosporous; Salvinia produces two types of spores (microspores and megaspores), while Selaginella also produces distinct microspores and megaspores, leading to separate male and female gametophytes. Understanding the difference between homosporous and heterosporous plants is crucial for studying plant reproductive strategies and evolution.