Chromosome sorting from fluid suspensions of metaphase chromosomes using a fluorescence-activated cell sorter has been used for a number of years to produce chromosome-specific genomic libraries ...

It turns out that chromosome 2, which is unique to the human lineage of evolution, emerged as a result of the head-to-head fusion of two ancestral chromosomes that remain separate in other primates.

The National Science Foundation is supporting the development of bacterial-artificial-chromosome libraries to confront issues in developmental, evolutionary, and comparative biology. Who is ...

Scientists fully sequence the Y chromosome for the first time, uncovering information that could have implications for the study of male infertility and other issues.

Chromosome number changes in yeast Date: July 25, 2011 Source: Public Library of Science Summary: Researchers in Ireland have uncovered the evolutionary mechanisms that have caused increases or ...

Your doctor may suggest that you get a karyotype test, based on the results of a pregnancy screening test. Find out what the test looks for and when it’s done.

Two decades after the human genome sequence was completed, researchers have finally finished a map of the piece that makes males distinct. The Y chromosome is what distinguishes biological males ...

The oldest-known sex chromosome emerged in octopus and squid between 455 million and 248 million years ago — 180 million years earlier than the previous record-holder, scientists have discovered.

In many organisms, X and Y chromosomes can jettison extra material during DNA-swapping sessions with each other. But the campion lost much of its ability to tidy up large parts of its sex ...