Phenylketonuria is caused by a(n): dominant gene. ...

[burchfield96]

Phenylketonuria is caused by a(n):
 
  dominant gene.
  double-recessive gene.
  X-linked gene.
  single recessive gene.

Question 2

Bill is a genetic counselor. In his position, he has an ethical obligation to:
 
  inform insurance companies if a client has a strong probability of conceiving a
  child with a serious genetic disorder.
  keep results of client's tests confidential, away from insurance companies and
  public records.
  determine the course of action for the prospective parents.
  make sure clients make the right decision about conceiving or continuing a
  pregnancy.

[karlss]

Answer to Question 1

double-recessive gene.

Answer to Question 2

keep results of client's tests confidential, away from insurance companies and
public records.

[burchfield96]

Gracias!

[laurnthompson]

Excellent