in the mythical beast Bigfootus flatnosus, horn length is an example of continuo

Question

in the mythical beast Bigfootus flatnosus, horn length is an example of continuous variation, under polygenic control. Horn length could be = 1,3,5,7,9,11,13,15 or 17 cm long. How many genes are involved? ( the right answer is 4, I just don't know why it's 4) in the mythical beast Bigfootus flatnosus, horn length is an example of continuous variation, under polygenic control. Horn length could be = 1,3,5,7,9,11,13,15 or 17 cm long. How many genes are involved? ( the right answer is 4, I just don't know why it's 4) in the mythical beast Bigfootus flatnosus, horn length is an example of continuous variation, under polygenic control. Horn length could be = 1,3,5,7,9,11,13,15 or 17 cm long. How many genes are involved? ( the right answer is 4, I just don't know why it's 4)

Explanation / Answer

The number of phenotypic classes for 'n' number of genes is 2n+1. Hence 4X2 + 1 = 9.

Here we have 9 different horn length. So the answer is 4.

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