Knockout studies a) are used to learn about mating behaviors ...

[CharlieWard]

Knockout studies
 
  a) are used to learn about mating behaviors in mice.
  b) are used to gain a better understanding of DNA sequences.
  c) manipulate specific genes and observe the effects on behavior by removing certain genes from mice DNA.
  d) manipulate specific genes by inserting artificial hormones into mice DNA.

Question 2

In comparison to early asylums, present-day mental hospitals
 
  a) provide a great deal of stimulation.
  b) provide intensive individual therapy.
  c) provide for just basic needs and medication.
  d) are well-staffed with nurses and psychiatrists, but have few psychologists.

[ynlevi]

Answer to Question 1

c

Answer to Question 2

c