12th edition of my human genetics textbook


Tags

Glenn Nichols, surrounded by his hospice team. The author is in yellow.

Genetic Linkage

Identical Twins, Physical Fitness, and Transgender Identity in the News

July 27, 2018

Tags: Three Identical Strangers, twins, transgender

The terrific new documentary "Three Identical Strangers" tells the remarkable tale of triplets separated in infancy who met for the first time at age 19, in 1980. Their matching faces, mannerisms, behaviors, and quirks reverberate throughout the film, astonishing because the triplets were raised in economically diverse families. The film pays less attention to what makes them different.

Identical Twins That Differ Markedly in Physical Fitness

Another intriguing case of nature vs nurture in identicals is published in the new issue of The European Journal of Applied Physiology. Katherine Bathgate, James R. Bagley, and Andrew J. Galpin and their colleagues, from a trio of California colleges, compared 52-year-old identical twins who differ greatly in their physical fitness level. “TT” is a runner and triathlete, “UT” a sedentary truck driver. Because they share all their genes, differences in physical fitness reflect what the twins do and have done, not what they inherited.

To continue reading go to DNA Science, where this post first appeared.

20 Gene Variants and Transgender Identity: What Does It Mean?

March 26, 2018

Tags: transgender

The week started strangely.

On Monday morning, the author of a new book on transgender identity emailed me, asking about my research (I don’t have any). She’d read my comments in The Daily Mail, about an abstract from a meeting, identifying gene variants associated with transgender identity in a handful of people. But the Daily Mail writer, with whom I hadn’t communicated, didn’t identify the researcher. So people thought it was me.

Soon, Google Alerts sent me the full version of the article in by Oliver Moody, and then I recalled having emailed with him. (This is the Times of London; the New York Times rejects anything I send.) (more…)

Is Transgender Identity Inherited?

March 5, 2017

Tags: transgender, genetics of transgender

The recent return of the "which bathroom?" issue regarding transgender individuals’ use of public restrooms has made me think about how I’ve handled sex and gender in my human genetics textbook. Over the editions, the two topics have diverged. And that’s at the crux of misunderstanding. (more…)

instruction
Project to engage students in helping families with rare genetic diseases
Book Club Reader's Guide
Many challenging questions to stimulate thought and discussion.
Instructor's Guide
38 discussion questions to get students thinking and talking about gene therapy, including the science, ethical issues, and the drug approval process.
Narrative science
The Forever Fix is the uplifting true story of 8-year-old Corey Haas, who was cured of hereditary blindness just 4 days after gene therapy.
College Textbooks
A spectacularly-illustrated, clearly written human anatomy and physiology textbook, used in pre-health profession programs throughout the U.S.
A highly engaging, clearly written, beautifully illustrated introduction to the science of human genetics for the non-scientist. Now in its 11th edition, 12th to be published in September 2018.
Nonfiction
An ideal starting point for anyone who wants to know more about genes, DNA, genomes, and the genetic ties that bind us all.

Quick Links