Incomplete Dominance
1. How does incomplete dominance differ from complete dominance?
Answer:
In complete dominance, one allele is completely dominant over the other, resulting in a clear dominant phenotype. In incomplete dominance, neither allele is completely dominant, and the heterozygous phenotype is an intermediate blend of the two alleles.
2. What is incomplete dominance?
Answer:
Incomplete dominance is an inheritance pattern where neither allele for a specific trait is completely dominant over the other. Instead of one allele fully masking the expression of the other, the heterozygous phenotype displays an intermediate or blended phenotype.
3. Does incomplete dominance occur in all organisms?
Answer :
Incomplete dominance can occur in various organisms, but its prevalence may vary. It is observed in plants, animals, and humans for a range of traits, such as flower color, hair texture, and blood type.
4. Give an example of incomplete dominance.
Answer:
Example of incomplete dominance is flower color in snapdragons. When a red-flowered snapdragon (RR) is crossed with a white-flowered snapdragon (WW), the resulting offspring (RW) have pink flowers. Pink is an intermediate phenotype between red and white, demonstrating incomplete dominance.
5. What is incomplete dominance called?
Answer:
Incomplete dominance is a genetic inheritance pattern in which neither of two alleles for a particular gene completely masks or dominates the other allele. Incomplete dominance is also known as partial dominance or semi dominance.
Incomplete Dominance & Mendel’s Experiment
Incomplete Dominance is a form of intermediate inheritance where neither of the two alleles for a particular trait is completely dominant over the other. In this type of dominance, the heterozygous phenotype is a blend or intermediate between the two homozygous phenotypes. The concept of incomplete dominance emerged as a significant discovery following Gregor Mendel’s initial work in genetics. Incomplete dominance plays an important role in contributing to the diversity and variation of an organism’s traits or characteristics.
Table of Content
- What is Incomplete Dominance?
- Mechanism of Incomplete Dominance
- Concept of Dominance
- Incomplete Dominance and Codominance
- Examples of Incomplete Dominance
- FAQs on Incomplete Dominance
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