Ans.
A dominant trait can be defined as a trait that can be physically expressed in heterozygous as well as in homozygous state. The allele for dominant trait can mask the phenotype of another allele or recessive allele. Â
In pea plants, studied by Mendel, presence of yellow seeds was a dominant trait over green seeds that represented a recessive trait. In these plants, presence of one allele for yellow seed could hide the expression of allele for green seed.
Thus, the correct answer is option) 'yellow seeds.'