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Latest Chromosome Stories

Down's Syndrome Genes Shut Off In New Breakthrough
2013-07-18 05:30:06

Susan Bowen for redOrbit.com - Your Universe Online Scientists at the University of Massachusetts Medical School have made a huge breakthrough in our understanding of Down's syndrome. They reported in the online science journal Nature, that in a lab, they have switched off the extra chromosome that causes the disorder in humans. This is the proof-of-principal that opens the doorway for exciting new discoveries about this condition. Down's syndrome is the world's leading genetically...

Herd Fertility May Be Improved By Understanding The Gene-rich Y Chromosomes Of Bulls
2013-07-11 15:24:22

Penn State The Y chromosomes of cattle have more genes and are more active than the Y chromosomes of other primates, according to researchers. This discovery may help biologists better understand how cattle and other mammals evolved, as well as help animal breeders and farmers better maintain and enhance fertility in the cattle industry, said Wansheng Liu, associate professor of animal genomics, Penn State. "Low fertility is a big problem for the dairy and beef industry," Liu said....

2013-07-09 17:38:36

Findings of disrupted micronuclei may prove to be a valuable tool for detecting cancer Scientists studying cancer development have known about micronuclei for some time. These erratic, small extra nuclei, which contain fragments or whole chromosomes that were not incorporated into daughter cells after cell division, are associated with specific forms of cancer and are predictive of poorer prognosis. In a new study, published on July 3 in Cell, a team of scientists at the Salk Institute...

New Genes Essential To Life
2013-06-07 11:53:53

Brett Smith for redOrbit.com - Your Universe Online Some genes within an organism´s DNA have been there for a billion years and can be traced back through earlier species, while other genes are newly acquired and only a few million years old. According to a new report in the journal Science, these newly acquired genes can quickly become a major part of an organism´s genetic machinery and even essential for life. In the study, a team of American and German researchers were able...

2013-05-06 20:35:12

The human body contains trillions of cells, all derived from a single cell, or zygote, made by the fusion of an egg and a sperm. That single cell contains all the genetic information needed to develop into a human, and passes identical copies of that information to each new cell as it divides into the many diverse types of cells that make up a complex organism like a human being. If each cell is genetically identical, however, how does it grow to be a skin, blood, nerve, bone or other type...

Chromosomal Evolution Advancement In Sea Cradles
2012-12-12 15:45:38

Pensoft Publishers The study of chromosome changes arisen during species evolution is a current and intriguing topic that evolutionary biology proposes. However, in several groups (for example, mollusks), and chitons in particular, chromosome studies are scarce, with a few species investigated and analyses performed mostly with simple methods. Only 2,5% of about 900 living species of chitons have been so far karyologically investigated, all of them in the same order (Chitonida). The...

Plant Chromosome Number Variation From Mediterranean Coasts To Tatra Mountains And Beyond
2012-11-27 15:37:25

Pensoft Publishers Chromosome number is the most basic feature concerning the genome of a species, and it is known for about one third of higher plant species. In particular, for plants of Italy, Slovakia, and Poland, online chromosome number databases have been developed: 'Chrobase.it — Chromosome numbers for the Italian flora', 'Karyological database of ferns and flowering plants of Slovakia' and 'Chromosome number database — PLANTS', respectively. The three datasets account...

Down Syndrome Researchers Remove Extra Chromosome
2012-11-12 14:52:09

Brett Smith for redOrbit.com - Your Universe Online Geneticists from the University of Washington won a key victory in the battle against genetic diseases by successfully removing the extra chromosome 21 from cells derived from a person with Down syndrome, according to the team´s report in the journal Cell Stem Cell. Down syndrome, also known as trisomy 21, is caused by an extra copy of chromosome 21. In addition to the tell-tale facial features such as an abnormally small chin and...


Word of the Day
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'