The weight of fruit in a plant is determined by the number of dominant alleles of a certain number of genes. If seven weight categories are noticed, how many gene sites would be involved?

Two

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Three

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Four

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Five

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Solution

The correct option is B Three
In the cases for polygenic inheritance, the number of categories is given by 2n+1 where is n is the number of genes. So,
2n+1=7
2n=7-1
2n=6
n=3.
So, the correct option is 'Three'.

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The weight of fruit in a plant is determined by the number of dominant alleles of a certain number of genes. If seven weight categories are noticed, how many gene sites would be involved?

The correct option is B ThreeIn the cases for polygenic inheritance, the number of categories is given by 2n+1 where is n is the number of genes. So, 2n+1=7 2n=7-12n=6n=3. So, the correct option is 'Three'.

The correct option is B Three
In the cases for polygenic inheritance, the number of categories is given by 2n+1 where is n is the number of genes. So,
2n+1=7
2n=7-1
2n=6
n=3.
So, the correct option is 'Three'.