Problem: Virtually all of the cells in your body contain the gene that codes for hemoglobin. And yet, hemoglobin is synthesized in your red blood cells, but not in your neurons, bones, retina, and other regions. Summarize the events that occur when a hemoglobin gene is expressed. Be sure to mention things like DNA, mRNA, tRNA, promoter, transcription factors, etc. How is the hemoglobin gene expressed in your blood cells but not your neurons?