C.GGXGg is the most likely genotype of the parents who produce 702 gray seeds and 698 white seeds.
In the field of biology, the dominant trait can be described as a trait that can mask the effect of the recessive trait. On the other hand, a recessive trait can be described as a trait that gets masked by the dominant trait.
In the scenario mentioned in the question, grey seed color is dominant to white seed color. The cross shows that more number of gray seeds were produced and also there was the production of white seeds. Such a circumstance can only be possible if the homozygous dominant GG will be crossed with heterozygous Gg.
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