Use the names of genes, abilities, or diseases to find genes in the human genome.

Go to http://www.ncbi.nlm.nih.gov/.
Find and click Map Viewer.
Find and click Homo sapiens.
Find the search window, type in olfactory, click Go.
Record request ID.
Then, click Format!.
Click Genome View.
How many hits? What chromosome is/are the hit/s located on?
How long is the gene? What’s the gene structure?
What function does the gene have?
Try some other genes you have recently heard about. In each case determine the length, structure, and function of the gene. If you can't come up with any, try to use these keywords: rhodopsin, dystrophin, estrogen, cell death, clock, social, pheromone.
Go to http://www.ncbi.nlm.nih.gov/mapview/ and search another genome with some of these keywords. Good examples are mouse or baker's yeast.