| Self-incompatibility is a process to |
| I. ensure cross-pollination |
| II. prevent self-fertilisation |
| III. ensure self-fertilisation |
| IV. genetic control for self-fertilisation |
| Choose the correct process for given statements. |
A) I, II and III
B) I, II, III and IV
C) I, III and IV
D) I, II and IV
Correct Answer: D
Solution :
[d] I, II and IV processes are correct for given statement. Self-incompatibility is a genetic mechanism, i.e. genetic control for self-fertilisation by preventing self-pollination, i.e. from the same flower or other flower of the same plant from fertilising the ovules by inhibiting pollen germination or pollen tube growth in the pistil. It ensures cross-pollination. Thus, option [d] is correct.
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