To find a gene, you have to associate a phenotype with a genotype (e.g. all individuals with white flowers have a certain allele). It is MUCH harder to find which genes are involved in polygenic traits than it is to find the genes responsible for discrete traits. Why?

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16-01-2017
Chemistry

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To find a gene, you have to associate a phenotype with a genotype (e.g. all individuals with white flowers have a certain allele). It is MUCH harder to find which genes are involved in polygenic traits than it is to find the genes responsible for discrete traits. Why?

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MissPhiladelphia MissPhiladelphia · Answer 1 · 2017-01-23T15:57:02+01:00

t's harder to find one of the many genes involved in a polygenic trait vs. the only gene involved in a discrete trait."

It is probably not very difficult to find ONE OF THE GENES involved in a polygenic trait (as this answer suggests), but it IS difficult to find ALL OF THE GENES involved in the trait.

This sounds like a high school Biology or first year university question - chances are they're testing your reading comprehension as much as your scientific knowledge.