A trait shows blending of characteristics. What type of inheritance is this?
This type of inheritance is called incomplete dominance, where neither allele completely dominates the other, so the phenotype appears as a blend.
Key Idea
| Term | Meaning |
|---|---|
| Incomplete Dominance | Both alleles partially express |
| Blended Trait | Intermediate phenotype appears |
Example
| Cross | Result |
|---|---|
| Red Flower (RR) × White Flower (rr) | Pink Flower (Rr) |
Genetic Representation
| Genotype | Phenotype |
|---|---|
| RR | Red |
| rr | White |
| Rr | Pink (blend) |
Stepwise Understanding
Two parents with different traits are crossed
Offspring receives one allele from each parent
No allele completely dominates
Both traits combine partially
New intermediate phenotype appears
Important Concept
In incomplete dominance, phenotype is not same as either parent, it is a mix.
Real Insight
This is different from normal dominance where one trait hides the other, here both contribute visibly.
So blending of traits indicates incomplete dominance inheritance.