Answer :
If two plants with green seeds were crossed and resulted in 302 green and 98 blue seed plants, then the most probable genotype of each parent will be heterozygous since 3:1 phenotypic ratio is the result we can observe for a monogenic trait in a Punnett square.
What is a Punnett square?
A Punnett square is a diagram used in genetics to estimate genotype and phenotypic frequencies after a cross, which may be monogenic or include more than a single gene.
In this case, the cross is between two heterozygous individuals for a monogenic trait that exhibits complete dominance, it is the reason for which we can see a proportion 3:1 in the phenotypic ratios in a Punnett square.
Therefore, with this data, we can see that a Punnett square can be used to determine the phenotypic ratios, which are statistically close to the observed in this example to a 3:1 ratio.
Learn more about a Punnett square here:
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