AIIMS 2019 Biology Seed Habit Assertion Reason Question
Assertion : Heterospory and retention of female gametophyte are responsible for origin of seed habit in Selaginella
Reason: Psilotum is a living fossil
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false
If both assertion and reason are false.
Correct Answer
Detailed Explanation
Option C is correct because it accurately reflects that both the assertion and reason are true statements; however, the reason does not directly support the assertion. The assertion highlights the significance of heterospory and the retention of the female gametophyte in Selaginella, which is crucial for the evolution of seed habit, while the reason notes that Psilotum is a living fossil, indicating its primitive characteristics. Other options are not applicable as they do not provide relevant information or context to the assertion and reason presented in the question. Understanding these concepts is essential for grasping the evolutionary adaptations in plant reproduction.
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