Flowers of the garden pea are bisexual and self-pollinated .Therefore ,it iks difficult to perform hybridization experiment by crossing a particular pistil with the specific pollen grains.How Mendek made it possible in his monohybrid and dihybrid crosses?

Explanation

Mendel selected the plants to be used as male and female parent.He removed the stamen froom the flower of the plant which was taken up as the female parent.Self pollination will not be possible in this flow.Further he also kept the stigma covered so that no other pollen other than the desired variety will fall on the stigma.Thus mendel was above 40 percent self pollination in the plants selected for crossing.