Humans normally have 46 chromosomes in each cell, divided into 23 pairs. Two copies of chromosome 9, one copy inherited from each parent, form one of the pairs. Chromosome 9 is made up of about 140 million DNA building blocks (base pairs) and represents approximately 4.5 percent of the total DNA in cells.
Identifying genes on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 9 likely contains between 800 and 1,300 genes.
Genes on chromosome 9 are among the estimated 20,000 to 25,000 total genes in the human genome.
New research coordinated by Karolinska Institutet in Sweden links certain DNA variants to increased risk of irritable bowel syndrome in women. The findings, published in the scientific journal Gastroenterology, might help explain why IBS is more common in women than in men.
A new study has found certain genes that predispose a person to develop insomnia or sleep problems. This was one of the largest genome wide studies undertaken on insomnia. The study led by psychiatrist Murray Stein from the University of California San Diego was published in the latest issue of the journal Molecular Psychiatry.
Thyroid cancer is a disease with good cure rates in most cases. In 5% of patients, however, the tumor becomes refractory to the available therapies and may spread all over the body, causing death.
Every day, billions of new blood cells are generated in the bone marrow. The gene Myc is known to play an important role in this process, and is also known to play a role in cancer.
Scientists have long been reading the code of life - the genome -, as a sequence of letters but now researchers have also started exploring its three-dimensional organization.
Amity Manning, assistant professor of biology and biotechnology, has received a three-year, $300,000 award from the Smith Family Awards Program for Excellence in Biomedical Research.
A study from a team of Massachusetts General Hospital (MGH) investigators points toward a potential strategy for treating X-linked disorders - those caused by mutations in the X chromosome - in females.
A new study conducted by a group of researchers at MRC Laboratory of Molecular Biology, Cambridge revealed the significant role of alcohol in causing damage to DNA in stem cells and thereby increasing cancer risks. The study was funded by Cancer Research UK and the results were published in Nature.
Scientists have shown how alcohol damages DNA in stem cells, helping to explain why drinking increases your risk of cancer, according to research part-funded by Cancer Research UK and published in Nature today (Wednesday).
Neuroblastoma (NB) is the most common solid tumor found in children. It starts in some very early forms of nerve cells found in the embryo or fetus.
Novartis announced today that the US Food and Drug Administration (FDA) approved the inclusion of Treatment-free Remission (TFR) data in the Tasigna® (nilotinib) US product label.
Scientists have found a distinct pattern that having older brothers raise the chances of the younger sibling being gay. This effect has been termed the “fraternal birth order effect”. They explain the biological reason behind this propensity in their new study that was published this week in the journal PNAS.
A report in The Journal of Molecular Diagnostics, describes a new simple molecular test to detect chromosomal abnormalities -- biomarkers known as telomere fusions--in pancreatic tumor specimens and pancreatic cyst fluids.
In a paper published in the Nature journal Scientific Reports, Saint Louis University researchers report that a new drug reduces fibrosis (scarring) and prevents loss of muscle function in an animal model of Duchenne muscular dystrophy (DMD), providing a promising approach in designing new medications for those suffering from DMD.
Study results revealed previously unknown interplay between two key enzymes and a novel understanding of how brain cancer tumors form and spread, according to researchers at The University of Texas MD Anderson Cancer Center.
University of Bristol research has revealed how cells rebuild their nucleus and organise their genome when they divide - a discovery which could have major implications for understanding cancer and degeneration.
A new study, conducted by researchers from the Institut Pasteur in Paris and the Centre for Genomic Regulation (CRG) in Barcelona, have revealed that Leishmania adaptation is a consequence of reversible and frequent chromosomal amplifications.
Leishmaniasis is an important human and veterinary disease caused by Leishmania parasites that affect 12 million people in over 98 endemic countries. The disease is now emerging in Europe due to climate change and massive population displacement.
Oxford BioDynamics Plc, a biotechnology company focused on the discovery and development of epigenetic biomarkers based on regulatory genome architecture, for use within the pharmaceutical and biotechnology industry, presented its latest results at the annual meeting of the Foundation for National Institute for Health Biomarker Consortium Cancer Steering Committee, held in Washington, DC on 6-7 November 2017.
Some scientists call it the "final frontier" of our DNA -- even though it lies at the center of every X-shaped chromosome in nearly every one of our cells.