Humans normally have 46 chromosomes in each cell, divided into 23 pairs. Two copies of chromosome 7, one copy inherited from each parent, form one of the pairs. Chromosome 7 spans about 159 million DNA building blocks (base pairs) and represents more than 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 7 likely contains about 1,150 genes.
Genes on chromosome 7 are among the estimated 20,000 to 25,000 total genes in the human genome.
When expressed (turned on), the gene (hTERT) located on Chromosome number 5p15.33 activates the enzyme telomerase. Human cells can keep living and dividing indefinitely when telomerase is continually present; i.e. the cells become immortal. Telomerase Activation Sciences, Inc. (T.A. Sciences®) announces TA-65® can extend human cell life indefinitely. TA-65® is a single molecule telomerase activator that turns on the Immortality Gene under controlled laboratory conditions.
U.S. Department of Agriculture (USDA)-funded studies of mammary gland development in laboratory rats fed blueberries or other foods of interest may aid breast cancer research.
Back in the mid 19th century, a French doctor, Armand Trousseau, discovered a connection between cancer and thrombosis - the formation of often dangerous blood clots that can lead to venous occlusion.
Researchers in the Keck School of Medicine of the University of Southern California (USC), together with scientists in Beijing, China, have discovered a chromosomal mutation responsible for a very rare condition in which people grow excess hair all over their bodies.
Excessive noise is not the only thing that causes damage to hearing. In many cases, genetic factors are responsible for the loss of hearing at a young age. Researchers at the Max Planck Institute for Molecular Genetics in Berlin together with colleagues from Nijmegen have discovered a previously unknown genetic cause of progressive hearing impairment: the disease is caused by mutations of the SMPX gene, which is located on the X chromosome.
Recently the number of genes known to be associated with Alzheimer's disease has increased from four to eight, including the MS4A gene cluster on chromosome 11.
Studying the genetic make-up of different varieties of lipids in the blood plasma of an individual can lead to a better and earlier prediction of diseases such as diabetes, atherosclerosis, and heart disease, two researchers will tell the annual conference of the European Society of Human Genetics today.
Four siblings in a family affected by early-onset Alzheimer's have been studied by a group of researchers at Karolinska Institutet in Sweden. This has been a unique opportunity to make comparative studies and to monitor the development of the disease over a prolonged period of time.
In a significant breakthrough, investigators at Weill Cornell Medical College and the University of California, San Francisco, have been able to overcome resistance of a form of leukemia to targeted therapy, demonstrating complete eradication of the cancer in cell and animal studies.
Researchers at the Johns Hopkins University School of Medicine have devised a new technique, which helps couples that are affected by or are carriers of genetic diseases have in vitro fertilized babies free of both the disease in question and other chromosomal abnormalities. The results were reported in the April issue of Fertility and Sterility.
A rare genetic disease called dyskeratosis congenita, caused by the rapid shortening of telomeres, can be mimicked through the study of undifferentiated induced pluripotent stem cells, according to new findings from the Stanford University School of Medicine.
Some men of African descent may have a higher genetic risk of developing prostate cancer, according to research conducted at the Keck School of Medicine of the University of Southern California.
A team of international researchers, including Case Western Reserve University School of Medicine, have discovered regions of the genome that affect the severity of the genetic disease cystic fibrosis, the most common lethal genetic disease affecting children in North America.
Researchers at the Johns Hopkins University School of Medicine have devised a new technique, which helps couples that are affected by or are carriers of genetic diseases have in vitro fertilized babies free of both the disease in question and other chromosomal abnormalities. The results were reported in the April issue of Fertility and Sterility.
Johns Hopkins Institute for Genetic Medicine researchers working as part of the North American Cystic Fibrosis Consortium have discovered two regions of the genome that affect the severity of cystic fibrosis, a genetic condition that causes scarring throughout the body, affecting most notably the pancreas and lungs.
New research at UC Santa Barbara is contributing to the basic biological understanding of how retinas develop. The study is part of the campus's expanding vision research.
Bristol-Myers Squibb Company, a leading global BioPharma company in oncology, today announced that more than 95 scientific abstracts on its approved and investigational oncology compounds will be featured at the 47th Annual Meeting of the American Society of Clinical Oncology in Chicago from June 3-7.
A multi-institutional team headed by Ursula Bellugi, professor and director of the Laboratory for Cognitive Neuroscience at the Salk Institute for Biological Studies, has been awarded a $5.5 million Program Project Grant by the National Institute of Child Health and Human Development to link social behavior to its underlying neurobiological and molecular genetic basis using Williams syndrome as a model.
Acute lymphoblastic leukemia, or ALL, is the most common form of childhood cancer. While most children treated for this disease survive, in a subgroup of patients the disease does not respond to treatment.
University of Rochester Medical Center researchers have pinpointed two genes that are amplified in the worst cases of esophageal cancer, providing data to support a new investigational treatment that targets those same genes.
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