सामान्यतः चार मेगास्पोर में से कितने क्रियाशील रहते हैं?
Usually how many megaspores remain functional out of four?
Explanation opens after your attempt
A. एकOne
Concept
Identify the concept: megasporogenesis forms four megaspores.
Why this answer is correct
Usually only one remains functional and forms the embryo sac.
Exam Tip
Memory tip: Four formed, one functional.
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