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tag sex chromosome culture evolution

Cellular DNA and epigenetics
Do Epigenetic Changes Influence Evolution?
Katarina Zimmer | Nov 1, 2022 | 10+ min read
Evidence is mounting that epigenetic marks on DNA can influence future generations in a variety of ways. But how such phenomena might affect large-scale evolutionary processes is hotly debated.
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.
Same-sex fungi can mate
Charles Choi(cqchoi@nasw.org) | Apr 25, 2005 | 2 min read
C. neoformans' sexual cycle could shed light on the evolution from asexuality to sex
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.
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.
Book Excerpt from Women After All
Melvin Konner | Feb 1, 2015 | 5 min read
In the introduction to his latest book, author Melvin Konner explains why he considers maleness a departure from normal physiology.
Fate of Rat's Sex is Flexible
Abby Olena, PhD | May 12, 2017 | 3 min read
Induced pluripotent stem cells from the tail of a female spiny rat can differentiate into male or female germ cells, outlining a possible escape route from extinction for this endangered species. 
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.
Opinion: The Politics of Science and Racism
Sadye Paez and Erich D. Jarvis | Aug 18, 2020 | 7 min read
Race has been used to segment humanity and, by extension, establish and enforce a hierarchy in science. Individual and institutional commitments to racial justice in the sciences must involve political activity.
Genetics Models Move Beyond Drosophila and the Humble Lab Mouse
Amber Dance | Sep 1, 2019 | 8 min read
Organisms with unusual genomes are helping scientists investigate gene regulation, evolution, and development.

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