The reason humans are an excellent species is we can control our own destiny. Also, we have advanced sciences and technologies to protect ourselves.We can use and control nature to feed our own. Some scientists think that the evolution of human beings has been stopped. But this is not the truth. The evolution of the human species does not stop. Human is a new species evolved by chimpanzee.Then, a series of unique mutations were carried out from human. Thus, these mutations form the unique characteristic of human beings. Because each gene of human is not totally same. So the genes of human beings will cause different characteristics and mutations from some elements.(Such as the colors of eyes and hairs.) But evolution does not have rules but
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Ten thousand years ago, human teeth were 10% higher than we moderns. But because our ancestors began to eat cooked food that is soft and do not need to much chew. So in the process of human evolution, the human teeth and jaw began to shrink, until they change to the size of our teeth and jaw now. Next, the example of human evolution is about that the offspring of the ancient farmers produce more salivary amylase(It is the key factor in the decomposition of starch in food). Most modern humans have several code that is copies of the amylase gene, AMY1. Modern hunters have only a little bit of the copies of the amylase gene no matter where they come from. (They are not similar to the descendants of the ancient farmers.) This shows that our ancestors have the more and more strong adaptability for the food, and they no longer need a large amount of salivary amylase to digest …show more content…
Most people have sticky wax now, while many people in East Asia have dry earwax that do not stick together. Dry earwax from a gene called ABCC11 is relatively new mutation. This change is more than 100 years. Another example of mutation about a gene called DARC (It saves on the red blood cell surface), which saved millions of Africans from a deadly disease, malaria. (Vivax parasite through DARC molecules into red blood cells, hinder DARC so as to keep the pathogen. But when the shapes of red blood cells changed, the ability of infect these cells by malaria parasites is also
Ten thousand years ago, human teeth were 10% higher than we moderns. But because our ancestors began to eat cooked food that is soft and do not need to much chew. So in the process of human evolution, the human teeth and jaw began to shrink, until they change to the size of our teeth and jaw now. Next, the example of human evolution is about that the offspring of the ancient farmers produce more salivary amylase(It is the key factor in the decomposition of starch in food). Most modern humans have several code that is copies of the amylase gene, AMY1. Modern hunters have only a little bit of the copies of the amylase gene no matter where they come from. (They are not similar to the descendants of the ancient farmers.) This shows that our ancestors have the more and more strong adaptability for the food, and they no longer need a large amount of salivary amylase to digest …show more content…
Most people have sticky wax now, while many people in East Asia have dry earwax that do not stick together. Dry earwax from a gene called ABCC11 is relatively new mutation. This change is more than 100 years. Another example of mutation about a gene called DARC (It saves on the red blood cell surface), which saved millions of Africans from a deadly disease, malaria. (Vivax parasite through DARC molecules into red blood cells, hinder DARC so as to keep the pathogen. But when the shapes of red blood cells changed, the ability of infect these cells by malaria parasites is also