Identify the phenotypic ratio of Duplicate gene action.
A. 9 : 7
B. 15 : 1
C. 13 : 3
D. 9 : 3 : 4
Answer: Option B
Solution (By Examveda Team)
The phenotypic ratio of Duplicate gene action is 15 : 1.In this cross, whenever a dominant allele is present at either locus, the biochemical conversion occurs, and a coloured kernel results.
Thus, only the double homozygous recessive genotype produces a phenotype with no colour, and the resulting phenotypic ratio of colour to noncolour is 15 : 1.
This Question Belongs to Agriculture >> Genetics And Plant Breeding
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