This TED-Ed video by Robin Ball comes with a small set of questions to be used in a lesson. The gendered language and visuals used in the video are more nuanced than most.
Irresponsible scientific research and media portrayals are hurting trans people. Do better.
In this article in Massive Science, neuroscientist Elysa Carr calls for authors to avoid essentialist biases and treat all identities, non-binary, gender nonconforming, trans, or cis, as equally valid. Carr advises scientists to consider how research on the genetics of human behavior can impact marginalized communities when the research is misinterpreted or abused.
Activity: Sex Verification of Athletes
Drawing of Indian professional sprinter Dutee Chand running a race.
In this web activity by HHMI BioInteractive, students integrate knowledge from several areas of genetics to understand the history and the science behind sex verification of athletes.
The key concepts covered in the activity are:
Information stored in DNA is expressed as RNA and proteins, which impact anatomical structures and physiology.
Many gene products determine the development of biological sex characteristics in humans.
Like many traits, biological sex consists of a spectrum of phenotypes.
Scientific knowledge (e.g., knowledge about which genes and other factors contribute to a person's traits) can inform societal practices (e.g., what types of tests can be used to define an individual's biological sex), although ultimately implementing those practices reflects our values as a society.
The lab techniques covered in the activity are:
Physical examination
Barr body staining
PCR and gel electrophoresis of SRY gene
Serum testosterone measurement
Activity: Nondisjunction and Intersex Traits
Description
In this activity, students pick up the nuts and bolts of nondisjunction by playing the Meiosis Game created by Sara Freeman and Matt Gilbert. Students simulate two scenarios of nondisjunction and record information about the intersex traits that arise. Students learn that while 46,XX and 46,XY are the most common human karyotypes, there are many other viable and naturally occurring variations. Then students evaluate the merits and limitations of the model.
