Question

Mention three differences between self-pollination and cross-pollination. [3 MARKS]

Answer 1

Each point: 1 Mark

$\begin{array}{cc}\text{Self Pollination}& \text{Cross Pollination}\\ \text{(i) Transfer of pollen from the stamen to the pistil}& \text{(i) Transfer of pollen from the stamen of one flower to the pistil of another flower of}\\ \text{of the same flower}& \text{the same plant or different plants of the same kind}\\ \text{(ii) External medium is not required}& \text{(ii) External medium is required}\\ \text{(iii) It occurs only in bisexual flowers}& \text{(iii) It occurs in both unisexual and bisexual flowers}\end{array}$