In research, the genetic differences of study animals is usually controlled by:
a. choosing animals that look alike
b. using a large number of animals
c. restricting the number of control groups
d. increasing the number of study trials
Question 2
Which of the following is a drawback of genetic diversity?
a. animals' varying care requirements
b. lack of ability to fight disease
c. reduced ability to adapt to the environment
d. difficulty producing offspring