Diameter of pollen grain is
Option 1 : 20–50 μm
Option 2 : 25–50 μm
Option 3 : 30–50 μm
Option 4 : 10–50 μm
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Diameter of pollen grain is
Option 1 : 20–50 μm
Option 2 : 25–50 μm
Option 3 : 30–50 μm
Option 4 : 10–50 μm