Blog Post #5

I learned from Chapter 4 things I learned in my Biology class, such as DNA, chromosomes, and genes. I learned the difference between fraternal and identical twins. Fraternal twins are from different fertilized eggs, while identical twins develop from a single fertilized egg. Shared genes can lead into shared experiences. For example, if one twin has Alzheimers', the probability of the other twin developing the illness is extremely likely. I learned that each cultural group has a norm, or rules for accepted and expected behavior. A norm mentioned that I thought was odd, was that the British have a norm for waiting in line. I also learned that human males and females ten to be more alike than different, and I never really realized that. We have the same senses and a very similar genetic makeup. As always, I was intrigued to learn all of these new things, it's very interesting to see just how unique we humans are.