In buckwheat, the bright red color of plants incompletely dominates over green. Heterozygotes for these genes are pink in color.

In buckwheat, the bright red color of plants incompletely dominates over green. Heterozygotes for these genes are pink in color. The panmictic population of 840 plants contained 42 reds. What is the frequency of occurrence of homozygous plants?

The frequency of occurrence of homozygous plants = 0.657.

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