PKU is a human disease in which the affected

individual is unable to metabolize the amino
acid, phenylalanine. Symptoms of this disease
include mental retardation, a lack of
pigmentation, and black urine. PKU is an
example of



a. epistasis.
b. pleiotropy.
c. incomplete dominance.
d. co-dominance.
e. complete dominance.


B

Biology & Microbiology

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Which of the following is mainly produced during cyclic electron flow?

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The selective permeability of a membrane refers to the ____

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Biology & Microbiology