Genetic Traits: From Nucleotides to Species
This module concentrates on the flow of genetic information from a single nucleotide to whole organisms. The first lesson demonstrates how sexual cell division increases the diversity of populations. In the second activity, students use Punnett squares to predict how parents’ genetic make-up will affect the physical appearance of offspring. Using the knowledge gained from these activities, the students will move on to an organism-level understanding of DNA’s impact on traits. Students will go on a kingdom scavenger hunt around school and locate as many specimens from each kingdom as possible. To close the unit, a dichotomous key exercise with insects demonstrates how physical changes signaled at a genetic level culminate in the identifying features of species, genera, families, etc.
|Module Activity Overview||Estimated Class Time|
|Delicious Division: Modeling Meiosis||1 (90 min) class|
|Monster Genetics||1 (90 min) class|
|Kingdom Scavenger Hunt||1 (90 min) class|
|Insect Dichotomous Keys||1 (90 min) class|
Last updated: 3/10/2015