Which of the following statement is incorrect?
When folded or bent together, chasmogamous flowers—open flowers that engage in autogamy—come near to one another.
The transport of pollen grains from the anther to the stigma occurs within the same flower during this sort of cross-pollination.
Bud pollination refers to pollination that occurs when the flower is in the bud stage.
Some plants have cleistogamous flowers, which are flowers that never open.
The statement in Option 2 is incorrect because it confuses the definition of cross-pollination. Cross-pollination refers to transferring pollen grains from the anther of one flower to the stigma of another flower, not within the same flower. In cross-pollination, pollen is transferred between different plants of the same species, promoting genetic diversity. Hence, option 2 becomes the correct answer for this question.