|MadSci Network: Genetics|
Thanks for your question. Even with the Human Genome almost completely sequenced, scientists still aren't sure how many genes humans have. 40,000 is certainly a reasonable estimate, since using a computer program called "Gene Finder" , 30,000 genes were discovered. You are correct that if there are 40,000 genes, there will be less than 40,000 proteins in any given cell in the body. Whether that is "few" or not I can not answer. There are many organsims that make due with far fewer, and some organisms have more. I guess we'll have to wait for more science before we can even begin to understand the role or the necessity for so many genes. Then we can ask the question, why not more? Erin Cram, Admin MadSci Network
Try the links in the MadSci Library for more information on Genetics.