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A 31-year-old member asked:

Could you tell me what happens in recessive disorders?

1 doctor answer1 doctor weighed in
Dr. Richard Bensinger
Ophthalmology 52 years experience
Depends: I am guessing that you want to understand the action of a recessive gene. Such a gene requires two copies to make a change. Eye color is a good example. Brown is dominant and if you get one brown and one blue gene your eyes will be brown. You need to get two blue genes, one from each parent, to have blue eyes.

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Last updated May 4, 2013
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