Phenylketonuria is caused by a. an inherited lack of an enzyme ...

[kfurse]

Phenylketonuria is caused by
 
  a. an inherited lack of an enzyme that produces tyrosine.
  b. accumulation of waste products in the brain.
  c. neurofibrillary tangles.
  d. toxic chemicals released by a virus.
  e. leakage from glutamate into the brain blood system.

Question 2

When the skull meets with blunt force trauma to the right side, the brain tissue will experience trauma as it meets the skull. This blow to the brain is known as
 
  a. the coup.
  b. the countrecoup.
  c. closed-head injury.
  d. open-head injury.
  e. punch drunk syndrome.

[blazinlyss]

Answer to Question 1

Answer: a. an inherited lack of an enzyme that produces tyrosine.

Answer to Question 2

Answer: a. the coup.

[kfurse]

Great answer, keep it coming

[AngeliqueG]

Wow, this really help