Like the sprinter gene or what determines eye color or risk of diabetes. How do we know that’s what they do when there is so many genes to sift through?
In: Biology
I am not a biologist, but I do at least know one of the ways we can figure it out: by messing with it. If you remove or otherwise alter the gene, and something in the animal is different when it develops, you can logically assume that part of the gene controls or affects the thing that was different.
There are more humane and complex ways biologists can determine which genes do what, I hope someone else can explain these processes here.
A lot of science is the equivalent of poking something with a stick to see if it moves. Mess with something and observe what happens, then see if you can design an experiment that tests why you think it’s happening.
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