Use your lecture notes from Lecture 3 to explain how each of these processes can lead to microevolution. There is no evidence that evolution is occurring now, in one or a few of our lifetimes. All evolution is adaptive. Although a pregnant woman develops a craving for pickles, her baby will not inherit a preference for pickles, because characteristics acquired during one's lifetime are not inheritable. An evolving species is one that is progressing toward perfection, toward its ideal form.
Most organismal biologists consider evolution to be a fact.
Do this first for African Americans Living in the U.S. today. Then do the same for Africans living in Central Africa. Imagine that two parents are heterozygous for the genetic disorder sickle cell anemia. Check your answer with your notes from lecture 26. In regions where malaria infects most people, being heterozygous for the sickle-cell allele is an advantage because these individuals are resistant to malaria.