All right. So we have made it through what DNA is and how we get from that crazy "snotty" stuff to our actual characteristics. We then looked at what happens when this "instruction manual" gets messed up. NOW...... if there are all these genes in EVERY single cell in our body..... WHY aren't all these proteins being made in every cell?!?! Remember, that comes down to cellular environment. Only certain genes are actually expressed (meaning they go through transcription and translation) in any given cell. What the human genome project did was look at EVERY SINGLE chromosome and determine the genes that are found on them. Here is a quick link to the image that is found in the back of the room.
https://public.ornl.gov/site/gallery/highres/GenomePoster2009.pdf
The best way to see this is to actually zoom in on each chromosome and you will see what genetic disorders are associated with that region of the chromosome. BUT...... not every cell in the body would be affected by these since they are not being expressed in all cells.
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