Incomplete Dominance Explained (Easy !) || Class 12 || NCERT
Biology Aid・2 minutes read
The video explains incomplete dominance in plants, showing how a cross between red and white flowers produces pink flowers in the F1 generation due to genetic representation with capital R and small letter r. It contrasts incomplete dominance with complete dominance using the Snap Dragon Plant as an example, emphasizing the genetic basis of color expression.
Insights
- Incomplete dominance in plants leads to the production of pink flowers when red and white flowers are crossed due to the blending of traits, showcasing a unique genetic phenomenon distinct from complete dominance.
- The genetic representation of red and white plants as capital R and small r respectively demonstrates how traits are inherited and expressed in the F1 generation, providing a clear illustration of genetic principles through real-world examples like the Snap Dragon Plant.
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Recent questions
What is incomplete dominance in plants?
Incomplete dominance in plants occurs when the combination of two different traits results in an intermediate phenotype, such as pink flowers from red and white flowers.
How is incomplete dominance represented genetically?
In incomplete dominance, the genotype of the red plant is represented as capital R and the white plant as small letter r, leading to the production of pink flowers in the F1 generation.
What is the difference between incomplete and complete dominance?
In incomplete dominance, a blending of traits occurs, resulting in an intermediate phenotype, while in complete dominance, one trait completely masks the other, leading to a dominant phenotype.
Can you provide an example of incomplete dominance in genetics?
The Snap Dragon Plant is often used as an example to illustrate incomplete dominance, where the combination of red and white flowers results in pink flowers, showcasing the concept in genetics.
How do red and white flowers produce pink flowers in plants?
The combination of red and white flowers in plants results in pink flowers due to incomplete dominance, where neither trait is completely dominant, leading to the expression of an intermediate phenotype.
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Summary
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Incomplete Dominance in Plants: Pink Flower Genetics
- The video discusses the concept of incomplete dominance in plants, where the combination of red and white flowers results in pink flowers due to incomplete dominance.
- It explains the genetic representation of the plants used, with the genotype of the red plant represented as capital R and the white plant as small letter r, leading to the production of pink flowers in the F1 generation.
- The video also highlights the difference between incomplete dominance and complete dominance, using the example of the Snap Dragon Plant to illustrate the concept of incomplete dominance in genetics.
