What is incomplete dominance? give an example.

Incomplete dominance is a inheritance pattern in which dominant allele does not show its phenotype completely in the presence of recessive allele.

Explanation:

The dominant allele always express itself whereas the recessive allele express only in homozygous recessive condition.The Incomplete dominant allele express itself only in homozygous condition whereas in heterozygous condition recessive allele will show its phenotype. Thus the result is a new phenotype in heterozygous condition.

For example: A snapdragon red flower(RR) crossed with white snapdragon flower(rr) will result in pink flowers(Rr).