Just as scientists gather evidence about prehistoric animals by examining bones and fossils, scientists also study human bones and fossils to learn about changes in human populations. In addition, scientists study changes in the human genome to track and understand changes in the human population. As you have learned in previous weeks, the process of meiosis causes genetic variation among offspring. In addition, mutations that occur during meiosis lead to changes in offspring. When these mutations are advantageous for the offspring, they may be passed to further generations. For this week’s Discussion, you explore the evidence scientists have uncovered regarding how mutations in the human genome have led to observable changes in the human population.
To prepare for this Discussion:
With these thoughts in mind:
Post a 1- to 2-paragraph response to the Discussion Spark.
Important Note: The Discussion Spark and the weekly Discussion topic below will be graded together. You will see one score in your My Grades area.
Post two or more paragraphs evaluating the significance of your selected mutation’s role in human evolution. Your evaluation should include the following:
Read a selection of your colleagues’ postings.
****DISCUSSION SPARK QUESTION*****
What do you consider mysterious about the development of humans and our society? How might the work of scientists help to uncover facts to understand this mystery?