Biology · Oct / Nov 2017 · Paper 22 · Question 3

An experiment was carried out to investigate the inheritance of flower colour. In cross 1, a plant with blue flowers (plant G) was pollinated by another plant with blue flowers (plant H). The resulting seeds were collected and labelled ‘batch 1’. In cross 2, plant G was pollinated by a plant with white flowers (plant J). The resulting seeds were collected and labelled ‘batch 2’. All the plants were of the same species. Fifty seeds from each of batch 1 and batch 2 were grown and the number of plants with white flowers was counted. The results are shown in Table 3.1. Table 3.1 batch number of plants with white flowers 1 (from cross 1) 12 2 (from cross 2) 27

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