Question

Distinguish between the self pollinated flower and cross pollinatioed flower. how is pollen grains from other flowers prevented from reaching the stigma of a self pollinated flower

Answer 1

$\huge\bf\green{Question}$

Distinguish between the self pollinated flower and cross pollinatioed flower. how is pollen grains from other flowers prevented from reaching the stigma of a self pollinated flower

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Self Pollinated

• Transference of pollen grain from stamen to pistil of a same flower.
• It occurs only in bisexual plants.
• Anters and ovules must mature at same time.
• There is no need of a pollinating agent.
• It is less common.

Cross Pollinated

• Transference of pollen grain from stemens of one flower to the pistil of another flower of same kind.
• It occurs in both plants.
• Anters and ovules mature at different time.
• There is need of pollinating Agent .
• It is more common.

Some flowers like the fig remain closed until pollination occur like peas, beans and Snapdragon are designed in such a way that pollination from other flowers cannot enter.

$\huge\boxed{\fcolorbox{red}{yellow}{Hope it helps}}$