Additionally, an exit ticket will assess students' understanding about whether mutations are always harmful; students should defend their reasoning. The presentation should include the following: the mutation, how it affects DNA, an example of how the DNA mutation affects the RNA strand and amino acid chain, and a real-world mutation of its kind. This mutations lesson for high school students involves analyzing how point mutations occur and affect genetic codes, while also engaging in developing and using models, one of the science and engineering practices of the NGSS. [Extracted from the article]