[1] Phenylketonuria (PKU) is a genetic disorder caused by a deficiency in which enzyme?
a) Phenylalanine hydroxylase
b) Tyrosine hydroxylase
c) Tryptophan hydroxylase
d) Histidine hydroxylase
[2] PKU results in a buildup of which amino acid in the body?
a) Phenylalanine
b) Tyrosine
c) Tryptophan
d) Histidine
[3] PKU is inherited in which pattern of inheritance?
a) Autosomal dominant
b) Autosomal recessive
c) X-linked dominant
d) X-linked recessive
[4] PKU can lead to which neurological condition in untreated individuals?
a) Parkinson's disease
b) Alzheimer's disease
c) Intellectual disability
d) Multiple sclerosis
[5] PKU can be diagnosed through which type of test?
a) Blood test
b) Urine test
c) Skin test
d) Saliva test
[6] PKU can be treated through which method?
a) Gene therapy
b) Medication
c) Diet management
d) All of the above
[7] PKU patients must avoid which type of food in their diet?
a) High-protein foods
b) High-carb foods
c) High-phenylalanine foods
d) High-fat foods
[8] PKU can cause which physical characteristic in untreated individuals?
a) Pale skin
b) Dark circles under the eyes
c) Musty odor in the breath and sweat
d) All of the above
[9] PKU is most commonly found in which population?
a) Asian
b) African
c) Caucasian
d) Native American
[10] PKU can be prevented through which method?
a) Genetic counseling
b) Pre-natal testing
c) Post-natal testing
d) All of the above
Answers:
- a) Phenylalanine hydroxylase
- a) Phenylalanine
- b) Autosomal recessive
- c) Intellectual disability
- a) Blood test
- d) All of the above
- c) High-phenylalanine foods
- d) All of the above
- c) Caucasian
- d) All of the above.