In pea plants, the flowers can be purple or white. The diagram shows 3 generations of pea plant crosses.

•Using the pea flower color cross, identify the pattern of inheritance shown and explain how the cross shows this pattern

•Explain how farmers could ensure that they only grow white flowers.

Purple colour arises due to the dominant alleles whereas white colour arises due to the recessive alleles.

For the purple colour to arise, even one of the dominant allele will be enough to cause the effect. On the other hand to see the recessive white trait, both the alleles of the gene should be recessive.

To ensure that only white flowers are grown, the farmers need to cross both white flowered plants to get the desired result.

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