A pair of circling white dwarf stars located on our "cosmic doorstep" are doomed to explode in a rare, quadruple supernova that will shine 10 times brighter than the moon in the night sky, a new ...

One promising area of research focuses on chromosomes—the structures inside cells that carry genetic information. Each human cell contains 46 chromosomes, which regulate cellular functions and ...

Menkes disease (MD) is a recessive X-linked syndrome described by Menkes (1) more than 40 y ago. It is characterized by progressive cerebral and cerebellar degeneration, growth retardation, and ...

For these reasons, it wasn’t until 1956 that the correct number of 46 human chromosomes (23 pairs) was clearly demonstrated. Since the 1 920s, when researchers began to study chromosomes, the analysis ...

Everyone has 23 chromosomes from each parent for a total of 46 chromosomes. People with Trisomy 21 have a third chromosome attached to the 21st pair of chromosomes, so World Down Syndrome Day is ...

To prepare the 46 chromosomes of a human cell for transport to the daughter cells during cell division, each chromosome forms a compact X-shaped structure with two rod-like copies. How the cell ...

Each cell in the human body typically contains 23 pairs of chromosomes. Most children born with Down syndrome ... Davis Veterinary Medical Teaching Hospital. Instead of the typical 46 chromosomes, the ...

Ashley started at The Scientist in 2018. Before joining the staff, she worked as a freelance editor and writer, a writer at the Simons Foundation, and a web producer at Science News, among other ...