Question

Self-pollination means,

• A. Germination of pollens within the anther.
• B. Transference of pollens from anthers to the stigma within the same flower.
• C. Transference of pollens from one flower to another on the same part.
• D. The presence of male and female sex organs in the same flower.

Answer 1

The correct option is B Transference of pollens from anthers to the stigma within the same flower.

Self-pollination is when pollen from the same plant arrives at the stigma of a flower or at the ovule (in gymnosperms). There are two types of self-pollination. In autogamy, pollen is transferred to the stigma of the same flower. In geitonogamy, pollen is transferred from the anther of one flower to the stigma of another flower on the same flowering plant, or from microsporangium to ovule within a single (monoecious) gymnosperm. Some plants have mechanisms that ensure autogamy, such as flowers that do not open, or stamens that move to come into contact with the stigma.

Therefore, the correct answer is option B.