A) It requires the production of a large number of pollen grains
B) It can fail to occur due to distance barrier
C) It occurs only in unisexual flowers
D) It most often results in high yield of plants
Correct Answer: A
Solution :
Cross pollination is the transfer of pollen grains from a flower to the stigma of another flower. Cross pollination require the production of a large number of pollen grains and a pollinating agent such as wind (Anemophilly), water (Hydrophilly), insect (Entomophilly) etc.
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