本题目来源于试卷: SL/HL Topic D3.1 Reproduction，类别为 IB生物学
[问答题]
6. Explain the importance of self-incompatirw .uy+2ot,eybility methods in polli +:wb+3 jquvk8q7lo6x m*i vsgnation and fertilisation which achieve greater genetic diversity within a species of:s v6l+x +v3wboqj umiqg7* k8 flowering plant.
参考答案: Self-pollination is likely in many plants, as they produce large numbers of flowers on a single plant / pollinators may visit several flower on the same plant. Self pollination reduces genetic diversity in offspring. / it is a form of inbreeding.
Genetic diversity is increased by cross pollination/pollination between different plants.
Self-incompatibility methods are genetic mechanisms which prevent self-pollination/promote cross pollination. As pollen landing on the stigma does not grow a pollen tube, leaving non-self pollen to fertilize ovules.
本题详细解析:
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