Explain incomplete dominance with sutiable example.

Explanation

Incomplete Dominance :
1. In incomplete dominance both the genes of an allelomorphic pair express themselves partially.
2. One gene can not suppress the expression of the other completely.
3. There is intermediate expression in `F_(1)` hybrids.
4. There is no dominant or recessive.
Example
In four O' clock plant (Mirabilis jalapa) when red flowers (RR) are crossed with white (rr) flowers, `F_(1)` hybrids bear pink (Rr) flowers. On selfing of `F_(1)` hybrids `F_(2)` generation showed Red, pink and white flowers in the ratio of 1:2:1.
Incomplete dominance results in pink flowers.