Step 3: Make a claim. a) Recall what you know about crossing over, independent assortment, and random joining of
sex cells during sexual reproduction.
b) Now, go back to the claims in Step 2a. Do you support these claims? If so, do you support the
totality of the claims or just parts of the claims?
c) Based on your prior knowledge, make a claim about the factors that cause inherited genetic
variations within populations. Also make a claim about the effects of mutations. Write your
claim in your notebook.
Step 4: Conduct research to support your claim.
a) For each part of your claim, conduct research to provide two examples of scientific
information that supports it.
i. Scientific information may be gathered from reputable websites, scientific journals,
and video lessons from scientists or educators, information from government
agencies, or interactive activities from universities or other educational sites.
b) Be sure to take notes in your notebook.
c) Keep track of the sources you use. You will need to cite them later.