The Basic Idea and Rationale Behind the Study of "Knockout

Multiple Choice

The basic idea and rationale behind the study of "knockout mice" is that ________.

A) if a gene is used in a particular function, then knocking out the gene should create a deficit in that function
B) mice who are "knocked out" after receiving a tranquilizer will show diminished recall abilities upon regaining consciousness
C) researchers cannot manipulate a mouse's genetic composition so as to impact its memory
D) extremely aggressive mice tend to recall various maze routes better than less aggressive ones