The entire room. The ability to taste PTC, a bitter chemical, is genetic. People who are unable to taste PTC are usually the ones who like things like brussel sprouts.
Tasting is dominant, with homozygous tasters much more sensitive than heterozygotes.
We will taste PTC, and figure out if the room is in Hardy-Weinberg Equilibrium. These are a few additional Hardy-Weinberg problems that are not to be graded for the lab. You are welcome to work on them and then check the answers on the web page, and ask me if you have any questions. In cats, let s suppose there are two alleles for pigment. Among Caucasians, cystic fibrosis affects one in every 2000 live births and is in Hardy-Weinberg equilibrium.