In quantitative inheritance $F_{2}$ ratio obtained in a dihybrid cross is

1 : 4 : 6 : 4 : 1

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15 : 1

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12 : 3 : 1

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9 : 7.

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Solution

The correct option is A 1 : 4 : 6 : 4 : 1
Quantitative inheritance is also known as polygenic inheritance, where a single character is controlled by many genes present at different loci producing a continuous phenotypes.
Example; skin color in man, kernel color in wheat
The dihybrid ratio of these genes is 1:4:6:4:1

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