NEETZoologyPrinciples of Inheritance and Variation
What is an example of incomplete dominance?
Options
- AFlower color in peas
- BFlower color in snapdragons
- CFlower color in roses
- DFlower color in tulips
Correct answer
B. Flower color in snapdragons
Step-by-step solution
When experiments on peas were repeated using other traits in other plants, it was found that sometimes the F1 had a phenotype that did not resemble either of the two parents and was in between the two. The inheritance of flower colour in the dog flower (snapdragon or Antirrhinum sp.) is a good example to understand incomplete dominance. In a cross between true-breeding red-flowered (RR) and truebreeding white-flowered plants (rr), the F1 (Rr) was pink (Figure 4.6). When the F1 was self-pollinated the F2 resulted in