The Y chromosome can disappear over time in human males, which may introduce a number of health problems. While the exact trigger for such degeneration is unknown, environmental factors can play a ...

Bacteria can change the order of genes on their chromosome (the chromosome structure ... sex or sexual orientation or social background. We value curiosity, independence of thought, plus an aptitude ...

Byrne Chair in Biomedical Research and professor of systems biology. “The work by our team outlines how cells follow a few simple rules to build chromosomes and fold DNA into these tiny, intricate ...

The study, published in the Journal of Experimental Medicine, is one of the first to explore how sex chromosomes and sex ... females (XX chromosomal background) have higher levels of specific ...

To understand how this looping eventually gives rise to rod-shaped chromosomes, the researchers built a computational model based on two simple assumptions. First, as observed, DNA forms ...

Gene editing techniques may eventually allow trisomy to be treated at the cellular level, according to an in vitro proof-of-concept study. Down syndrome is caused by the presence of a third copy ...

Researchers from the University of California, San Francisco (UCSF) say they have now found that when the brain cells of female mice express only a maternal X chromosome, the animals’ memory and ...

A glimpse into the evolution of SMC proteins What's more, the team found that this twisting action isn't unique to humans. Similar SMC proteins in yeast behave the same way. Remarkably, all the ...

Typically, females have two X chromosomes while males have an X and a Y. In birds and butterflies, males have two Z chromosomes, while females have one Z and one W chromosome. “It is mind ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A piece of woolly ...

“Einstein’s work makes a very simple prediction about chromosome fossils: under ordinary circumstances, they shouldn’t exist,” Dudchenko said. “And yet: here they are. It was a physics mystery!” To ...