Centromeres play virtually the same central role across the entire tree of life: They ensure the faithful segregation of ...

Robertsonian chromosomes (ROB) are a type of structurally variant chromosome that is created when two chromosomes fuse together to form an unusual bond. Found commonly in nature, these chromosomes are ...

New @hopkinskimmel research finds extra copies of chromosome 1q may drive the earliest stages of pancreatic cancer. › ...

Ferns, defined by large genomes, high chromosome counts, and pervasive aneuploidy as well as intraspecific polyploid complexity, diverge significantly from the classical genetic theories and ...

The evolution of sex chromosomes influences reproductive biology and genome evolution across species. In Drosophila pseudoobscura, the Y chromosome has a distinct origin compared to Drosophila ...

“What makes this so exciting is that the sequences responsible for these fusions come from repetitive DNA that was long considered useless,” said Jennifer Gerton, Ph.D. “It turns out this so-called ...

The Atlas blue butterfly, also known as Polyommatus atlantica, has been genetically confirmed as having the highest number of chromosomes out of all multicellular animals in the world. This insect ...

Since ancient times, scientists and philosophers have pondered the fundamental question of what makes some organisms male and some female. Some hypotheses were at least plausible—Greek philosopher ...

New techniques to detect Y chromosome genes show frequent loss of the Y in tissues of older men. The increase with age is clear: 40% of 60-year-old men show loss of Y, but 57% of 90-year-olds.

Chromosomes and heredity: The nature of the gene, by M. Demerec. Chromosome structure, by C. W. Metz. The sex chromosomes: heteropycnosis and its bearing on some general questions of chromosome ...