The D gene controls pea plant height.The DD and dd genotypes confer tall and dwarf phenotypes,respectively.What is the relationship between D and d?

Question

Quizplus · Accepted Answer

D and d are alleles of the same gene. This is evident from the fact that DD and dd genotypes confer different phenotypes (tall and dwarf), indicating that the presence or absence of the D allele determines the plant height. Furthermore, in a heterozygous individual (Dd genotype), the dominant D allele masks the expression of the recessive d allele, resulting in a tall phenotype.

The D Gene Controls Pea Plant Height