Genetics Quiz
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HUMAN AND MEDICAL GENETICS (INTRO)
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A geneticist studies a congenital condition by reviewing 50 large families. The review reveals the following: 1) The condition appears in siblings whose parents are both unaffected. 2) In other families, an affected parent passes it to about 25% of their children. 3) Males and females are affected with equal frequency. 4) The concordance rate in MZ twins is 60%. Which conclusion is best supported by this combination of findings?
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