An inherited metabolic disorder called phenylketonuria (PKU) can result in serious problems during infancy. When both parents are heterozygous (Pp) they have a 25% chance of having a
child with PKU.

Which of the following terms best applies to the inheritance pattern for PKU? (Create a Punnett
Square on scratch paper if necessary)

A. dominant
B. recessive
C. sex-linked
D. codominant

c. movement because i took the test and it lets me review my answers

is this a psat question, if so do not cheat try your best.

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