PATHOLOGY

Detailed explanation-1: -In snapdragon i.e. Antirrhinum majus, the flower color is controlled by incomplete dominance. The snapdragon flower has two flower colours, red (RR) and white (rr). When cross-pollination occurs between red and white flowers, a pink (Rr) snapdragon flower is produced.

Detailed explanation-2: -The genotype for the pink flower is Rr and the genotype for the white flower is rr. This would lead to a 50% chance of the offspring having a phenotype of pink.

Detailed explanation-3: -Figure 21: A cross between a red and white snapdragon will yield 100% pink offspring. This pattern of inheritance is described as incomplete dominance, meaning that neither of the alleles is completely dominant over the other: both alleles can be seen at the same time.

Detailed explanation-4: -In snapdragons, when red flowers are crossed with white flowers, the offspring will have pink flowers. This an example of incomplete dominance since no allele show dominance in the heterozygous condition (a clear deviation from the law of dominance, where one allele shows dominance in heterozygous condition).