Red, white, and pink snapdragon flowers and Different shades of skin color are the examples of Incomplete dominance
Thus option B and D are correct.
What do you mean by Incomplete dominance?
In a heterozygote, when a dominant allele is not completely mask the expression of recessive allele, so an intermediate character is expressed in F1 generation by blending of both alleles called Incomplete dominance.
It is a type of non-mendelian inheritance where no allele is dominant for a trait.
For Instance dragon plant with red and white allele in parent generation while cross with each other shows an intermediate pink color phenotype.
Another example in human is a child with his of parents of having curly and straight hair have wavy hair called incomplete dominance.
Thus option B and D are correct.
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