\BeginKnitrBlock{exercise}\iffalse{-91-87-104-97-116-39-115-32-116-104-101-32-112-111-112-117-108-97-116-105-111-110-63-93-}\fi{}<div class="exercise"><span class="exercise" id="exr:unnamed-chunk-6"><strong>(\#exr:unnamed-chunk-6)  \iffalse (What's the population?) \fi{} </strong></span>Imagine that you are an experimental biologist. You have just generated a new mouse line with a specific genotype and therefore, you have _all_ mice in existence with this genotype in your hands. What's the population of interest in this case?</div>\EndKnitrBlock{exercise}