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What do you understand by incomplete dominance give example and show the cross?
When none of the factors of a gene is dominant, the phenotype of a heterozygous dominant individual is a blend of dominant and recessive traits. This is called as incomplete dominance. For example, flower colour in Mirabilis jalapa. The red flower is the dominant character and the white flower is recessive character.
What occurs in incomplete dominance?
Incomplete dominance occurs in the heterozygote, in which the dominant allele does not dominate the recessive allele entirely; rather, an intermediate trait appears in the offspring. The offspring do not show the parental phenotype. The offspring shows both parental phenotypes.
What are the traits of incomplete dominance?
In humans, incomplete dominance is seen in many traits, such as lip protrusion, the pitch of male voices, and hair type. For example, if one parent has completely straight hair, and one parent has curly hair, the resulting child will have neither straight nor curly hair, but instead a blend of the two: wavy hair.
Is incomplete dominance the same as co-dominance?
Incomplete dominance is not the same as codominance. In codominance, both alleles can be seen in the phenotype at the same time. Instead of being uniformly pink, a flower with red and white alleles that show codominance will have patches of red and patches of white.
What is the difference between incomplete dominance and codominance?
The key difference between codominance and incomplete dominance is based on the expression of the traits in the offspring. In Codominance, the offspring receive a combination of both parent genes, whereas, in Incomplete dominance, neither one of the parent genes expresses. In genetics,…
What is an example of an incomplete dominant human trait?
Incomplete dominance is rare in humans; we’re genetically complex and most of our traits come from multiple genes. However, there are a few examples. Incomplete dominance is just part of what makes our species so complicated and interesting. The disease familial hypercholesterolemia (FH) is an example of incomplete dominance. One allele causes liver cells to be generated without cholesterol receptors, while another causes them to be generated normally.