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Old 10-13-2015
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Default Repeated USMLE Questions 131 #usmle

As physicians, we need to know some definitions in Genetics which are related directly to our practice and guide us to diagnose and treat a lot of genetic disorders. These items include genome, genotype, phenotype, genetic code, gene expression, etc.........

Which one of the following choices describes the definition of a phenotype?

A- Genetic history of an organism

B- DNA structure that determines the expression of a trait

C- An observable physical or biochemical trait on an organism

D- Physical location of a trait on a DNA molecule

Answer
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