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tag sex chromosome culture developmental biology

mixing blue and pink smoke, symbolic of the muddled boundaries between sexes
Opinion: Biological Science Rejects the Sex Binary, and That’s Good for Humanity
Agustín Fuentes | May 12, 2022 | 5 min read
Evidence from various sciences reveals that there are diverse ways of being male, female, or both. An anthropologist argues that embracing these truths will help humans flourish.
Illustration showing a puzzle piece of DNA being removed
Large Scientific Collaborations Aim to Complete Human Genome
Brianna Chrisman and Jordan Eizenga | Sep 1, 2022 | 10+ min read
Thirty years out from the start of the Human Genome Project, researchers have finally finished sequencing the full 3 billion bases of a person’s genetic code. But even a complete reference genome has its shortcomings.
X and Y Chromosomes Concern More Than Reproduction
Karen Young Kreeger | Feb 3, 2002 | 6 min read
Editor's Note: This is the third article in a series on sex-based differences in the biology of males and females. Future articles in the series will cover sex-based differences in autoimmunity, drug metabolism, and life expectancy. While responses to "What's the difference between men and women?" might evoke answers about reproductive plumbing and hormones, researchers are unearthing some subtle, genomic reasons for the differences. So far, the linchpins to finding these genomic variations seem
Choosing Sex
Blanche Capel | Oct 1, 2009 | 10+ min read
span.cap { float: left; margin: 0 3px 0 0; padding: 25px 0 25px 0; font-size: 80px; font-family: "Lucida Sans Unicode", "Lucida Grande", sans-serif; } By Blanche Capel Choosing Sex The gonad is an amazingly labile organ where male and female signals vie for dominance in the developing embryo. he recent controversy over the South African runner Caster Semenya's gender illustrates the complexity of how sex is assigned in hum
The Battling Sexes
Blanche Capel | Oct 1, 2009 | 10+ min read
span.cap { float: left; margin: 0 3px 0 0; padding: 25px 0 25px 0; font-size: 80px; font-family: "Lucida Sans Unicode", "Lucida Grande", sans-serif; } By Blanche Capel Choosing Sex The gonad is an amazingly labile organ where male and female signals vie for dominance in the developing embryo. © Lynn Johnson / National Geographic Image Collection --> Editor's Note: The gender of South African runner Caster Semenya&
Book Excerpt from The Dawn of the Deed
John Long | Dec 31, 2012 | 3 min read
In the final chapter of his book on the origins of vertebrate sex, author and paleontologist John Long pays homage to the humble placoderm, which got the erotic ball rolling.
Sex Differences in the Brain
Margaret M. McCarthy | Oct 1, 2015 | 10+ min read
How male and female brains diverge is a hotly debated topic, but the study of model organisms points to differences that cannot be ignored.
Genes that Escape Silencing on the Second X Chromosome May Drive Disease
Amber Dance | Mar 1, 2020 | 10+ min read
When X-linked genes evade silencing on the “inactive” chromosome in XX cells, some protect women from diseases such as cancer, but others seem to promote conditions such as autoimmunity.
Chromosome Analysis Goes High Tech
Ricki Lewis | Oct 15, 1989 | 5 min read
Since the 1 920s, when researchers began to study chromosomes, the analysis of human chromosomes has presented a particularly tough technological challenge, simply because there are so many of them. When displayed under a light microscope. the strands of human genetic material tend to bunch together maddeningly, overlapping and intertwining like so much spaghetti. For these reasons, it wasn’t until 1956 that the correct number of 46 human chromosomes (23 pairs) was clearly demonstrated.
Guts and Glory
Anna Azvolinsky | Apr 1, 2016 | 9 min read
An open mind and collaborative spirit have taken Hans Clevers on a journey from medicine to developmental biology, gastroenterology, cancer, and stem cells.

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