The statement which is certainly true about the gene of flower color in the pea plant is that the pea plant accepted different alleles from its parents. Thus, the correct option is D.
A genotype may be defined as the ultimate combination of alleles of those genes which are selected for specific studies.
Here, in this question, the allele P is significantly dominant over the allele p, which implicates that this specific plant takes two different alleles from each parent.
The pea plant has not only gathered any recessive alleles for the gene because there is a clear indication of allele P is there, which is a dominant one. The pea plant does not have both dominant alleles for the gene because there is a clear indication of allele p, which is a recessive one.
If the pea plant experiences the identical allele from each parent, it will definitely demonstrate genotypes of either PP or pp.
Therefore, the statement which is certainly true about the gene of flower color in the pea plant is that the pea plant accepted different alleles from its parents. Thus, the correct option is D.
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