The professor in this story teaches biology. Students might want to think about asking for a refund.

Campus Reform reports:

Biology prof lectures state rep on ‘sex determination stuff’

A San Jose State University biology professor recently accused a Texas state legislator of being “bigoted” for tweeting that there are only two genders.

“In case you forgot how many genders there are,” Republican State Representative Briscoe Cain tweeted on December 21, attaching a picture of the XX and XY chromosomes.

Describing herself as a geneticist, Rachael French replied to the tweet with an extended harangue in which she impugned Cain’s motives and derided his understanding of biology.

“Hey geneticist here. You’ve disingenuously and for bigoted purposes oversimplified a complex phenomenon,” she wrote. “A few notes: 1) Sex and gender aren’t the same thing. 2) Chromosomes don’t determine sex.”

“I know high school biology told you they do, but nope,” she continued in a separate tweet. “A single gene on the Y starts a cascade of events involving genes all over the genome to determine sex. If any of those things changes, surprise!”

French went on to differentiate between gender, which she describes as “a complex phenomenon arising from interactions between genes and the environment,” and sex, which “describes the physical manifestations” of that interaction.

“‘Gender’ describes the psychological and/or the emotional identity,” she elaborated, saying, “they’re regulated somewhat, though certainly not entirely, independently.”