In Incomplete dominance,

Dominant trait is completely expressed in

F_{1}

generation.

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Phenotypic and genotypic ratio are different.

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Two dominant alleles are needed to express the complete dominant trait.

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F_{1}

individuals have the equal traits of both parents.

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Solution

The correct option is C Two dominant alleles are needed to express the complete dominant trait.
In incomplete dominance, two dominant alleles are needed to express the complete dominant trait.
In the $F_{1}$ generation the phenotype of the individuals are intermediate between dominant and recessive and $F_{1}$ did not resemble either of the two parents. The phenotypic and genotypic ratio obtained is 1: 2: 1.

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Similar questions

Q. Identify the incorrect statements:
i) Multiple alleles are produced due to repeated mutation of the same gene but in different directions.
ii) In co-dominance, both the alleles of the gene are dominant and express independently in the heterozygous condition.
iii) Incomplete dominance results in two different phenotypes in the hybrid.

The trait represented by the coloured circles and squares below is inherited as a dominant allele. This is not a sex-linked trait. Shaded individuals represent the dominant trait. What is the probable genotype of shaded individuals?

Q. A student makes a monohybrid cross between TT and tt plants, where T is dominant and t is recessive. Identify the correct statements on the basis of the information given.

Statement 1: Recessive traits are expressed in both

F_{1}

and

F_{2}

generation.

Statement 2: Recessive traits are expressed only in the absence of corresponding dominant trait in the offspring.

Q. When a genotype consists of a dominant and a recessive allele for a trait, the phenotype expressed will be .

Q. In incomplete dominance and co-dominance, genotypic and phenotypic ratios are identical. Explain how codominance differs from incomplete dominance in phenotypic nature of their hybrids?

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