Genetic disorders of metabolism occur when individuals inherit a defect in one or more genes that result in the lack of a specific enzyme. Without appropriate enzyme activity, by products can accumulate in the body, sometimes with toxic effects. There is no cure for genetic disorders of metabolism, but early detection and specific diet modifications can control symptoms and prevent complications for many of these disorders. Select all of the sentences below that correctly describe the genetic disorder phenylketonuria (PKU).

a. Currently, blood tests are done at birth to screen for PKU. b. For a person with PKU, fruits, vegetables, grains, and special prescription formulas should compose the bulk of the diet. c. Individuals with PKU cannot metabolize phenylalanine.

Question

Gerald Dickerson

Biology

22 December, 15:16

Genetic disorders of metabolism occur when individuals inherit a defect in one or more genes that result in the lack of a specific enzyme. Without appropriate enzyme activity, by products can accumulate in the body, sometimes with toxic effects. There is no cure for genetic disorders of metabolism, but early detection and specific diet modifications can control symptoms and prevent complications for many of these disorders. Select all of the sentences below that correctly describe the genetic disorder phenylketonuria (PKU).

a. Currently, blood tests are done at birth to screen for PKU. b. For a person with PKU, fruits, vegetables, grains, and special prescription formulas should compose the bulk of the diet. c. Individuals with PKU cannot metabolize phenylalanine.

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Answers (1)

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Nevaeh Mitchell · Answer 1

All options seem to be feasible here, a) Currently, blood tests are done at birth to screen for phenylketonuria (PKU). Option b) For a person with PKU, fruits, vegetables, grains, and special prescription formulas should compose the bulk of the diet. c) Individuals with PKU cannot metabolize phenylalanine

Explanation:

Blood tests have been part of the Newborn screening program for many diseases, including PKU (option a)

Special diets programs including low ingesta of the amino acid Phenylalanine, have been used to control the disorder (option b)

The impossibilty to metabolize phenylalanine is the main feature of this genetic disorder (option c)