Pollinia are sac like structures
- AWhich secrete yellow substance called pollen kit
- BWhich are found in megasporangia
- CIn which anther lobes are present
- DIn which pollen grains are present in mass
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$A$ - Only some cells of the sporogenous tissue is capable of giving rise to microspore tetrad.
$R$- The microspores are arranged in a cluster of four cells - the microscopic tetrad.
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