Which among the following type of flower is used to understand incomplete dominance ?

Flowers of Snapdragon .

The correct answer is option (2) - Flowers of Snapdragon .

Incomplete dominance is a genetic phenomenon where the heterozygous phenotype is an intermediate blend of the two homozygous phenotypes. In other words, neither allele is completely dominant over the other.

Snapdragon flowers (Antirrhinum majus) are commonly used to understand incomplete dominance. In this case, the gene controlling flower color has two alleles: red (RR) and white (rr). The heterozygous condition (Rr) results in pink flowers, demonstrating incomplete dominance. The red allele does not completely dominate over the white allele, leading to an intermediate phenotype. This characteristic makes Snapdragon flowers a suitable model for studying incomplete dominance in genetics.