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Reduced protein S activity
- ... as genetic recombination). Genetic variations that alter gene activity or protein function can introduce different traits in an organism. ... s lifetime in only some of the body’s cells and are not hereditary, so natural ... of a gene or protein and are not helpful or harmful. In addition, ...
- ... contains a segment of DNA that controls the activity (expression) of the OCA2 gene, turning it on or off as needed. At least one polymorphism in this area of the HERC2 gene has been shown to reduce the expression of OCA2 and decrease P protein production, leading to less melanin in the iris ...