The F $_{2}$ dihybrid phenotypic ratio 9 : 3 : 4 is explained on the basis of

Epistatic gene

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Supplementary gene

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Allelic interaction

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Complementary gene interaction

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Solution

The correct option is B Supplementary gene
In a supplementary gene interaction, the dominant allele of one gene governs a character and shows the phenotypic effect. the dominant gene of the other allele do not show its effect but when it is present with the dominant gene of the other allele it modifies the phenotype.

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Similar questions

Q. The phenotype ratio 9:7 obtained in F2 generation instead of 9:3: :3:1 is due to which type of genes? Explain.

Q. Which of the following statement(s) is /are correct regarding the Mendelian dihybrid cross?
A. The F2 phenotypic ratio is 9 : 3 : 3 : 1
B. Law of independent assortment can be explained on the basis of the dihybrid cross
C. F2 generation is obtained through the cross between F1 plants with one of the two parental plants
D. The gametes produced by F1 plants are of 4 types in 1:1:1:1 ratio.

Genes that are similar in phenotypic effect when present separately, but together interact to produce a different trait and ratio is 9 : 7 in F $_{2}$ generation. Such genes are known as

Q. Nonallelic genes having similar phenotypic effect, interact to produce a different trait and a ratio 9 : 7 in

F_{2}

generation are

The phenotypic ratio in the F₂generation of a dihybrid cross is

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The F2 dihybrid phenotypic ratio 9 : 3 : 4 is explained on the basis of

The F $_{2}$ dihybrid phenotypic ratio 9 : 3 : 4 is explained on the basis of