Scientists are learning more and more about human biological variation, including of sex characteristics. But images of the human body in anatomy remain mostly muscular, white, and male with limited diversity, including of ...
Social Sciences
Oct 26, 2021
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Scientists at the University of California, Davis, have successfully produced a bull calf, named Cosmo, who was genome-edited as an embryo so that he'll produce more male offspring. The research was presented in a poster ...
Cell & Microbiology
Jul 23, 2020
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The Y chromosome may be a symbol of masculinity, but it is becoming increasingly clear that it is anything but strong and enduring. Although it carries the "master switch" gene, SRY, that determines whether an embryo will ...
Evolution
Jul 13, 2020
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Sex is an ancient and widespread phenomenon, with over 99 percent of eukaryotes (cells with nuclei) partaking in some form of sexual reproduction, at least occasionally. Given the relative ubiquity and presumed importance ...
Evolution
Dec 23, 2019
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A look at the brains of an endangered spiny rat off the coast of Japan by University of Missouri (MU) Bond Life Sciences Center scientist Cheryl Rosenfeld could illuminate the subtle genetic influences that stimulate a mammal's ...
Plants & Animals
Jan 31, 2019
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In cell biology, men and women are unequal: men have an X chromosome, while women have two. How can we get around this difference? Geneticists from the University of Geneva (UNIGE), Switzerland, turned to some historic research ...
Cell & Microbiology
Dec 19, 2018
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Each cell in a woman's body contains two X chromosomes. One of these chromosomes is switched off, because nobody can live with two active X chromosomes. Hendrik Marks and Henk Stunnenberg, molecular biologists at Radboud ...
Biotechnology
Aug 19, 2015
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Calico cats, renowned and beloved for their funky orange and black patchwork or "tortoiseshell" fur, can thank X chromosome inactivation or "silencing" for their unique look.
Biochemistry
Feb 18, 2014
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In mammals, an individual's sex is determined by the chromosomes it inherits from its parents. Two X chromosomes lead to a female, whereas one X and one Y lead to a male. Y chromosomes are only passed from fathers to sons, ...
Plants & Animals
Apr 4, 2013
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(Phys.org) —Researchers at Temple University and the University of Delaware have published a study in the Journal of Biological Chemistry that sheds new light on the clotting effects of a drug that is being tested as a ...
Biochemistry
Apr 3, 2013
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