Humans normally have 46 chromosomes in each cell, divided into 23 pairs. Two copies of chromosome 6, one copy inherited from each parent, form one of the pairs. Chromosome 6 spans about 171 million base pairs (the building blocks of DNA) and represents between 5.5 percent and 6 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 6 likely contains between 1,100 and 1,600 genes.
Genes on chromosome 6 are among the estimated 20,000 to 25,000 total genes in the human genome.
A new study reports that a loss of genes on chromosome 1 or chromosome 11 raises the risk of death from the children's cancer neuroblastoma, even when other indicators seem to point to a lower-risk form of the disease.
People with a specific combination of variants of two genes, encoding two different receptors for the antibody Fc gamma, are three times more likely to develop rheumatoid arthritis than individuals with different variant combinations.
About five million Germans have serious learning difficulties when it comes to reading and writing. It is frequently the case that several members of the same family are affected. So hereditary disposition seems to play an important role in the occurrence of dyslexia.
Pediatric researchers at Yale School of Medicine have identified a gene on human chromosome 6 called DCDC2, which is linked to dyslexia, a reading disability affecting millions of children and adults.
By comparing the human genome with that of the chimpanzee, man's closest living relative, researchers have discovered that chunks of similar DNA that have been flipped in orientation and reinserted into chromosomes are hundreds of times more common in primates than previously thought.
The expression of two specific genes is almost completely downregulated in ovarian cancer tumours. An extensive analysis of gene expression in ovarian cancer tumour cells has revealed this important finding, which should be an aid to early diagnosis.
Scientists believe they have discovered a genetic defect which could help explain the biological basis of schizophrenia.
A study in youth who are missing part of a chromosome is further implicating a suspect gene in schizophrenia.
A gene that regulates dopamine levels in the brain is involved in the development of schizophrenia in children at high risk for the disorder, say researchers at the Stanford University School of Medicine, Lucile Packard Children's Hospital and the University of Geneva.
New scientific evidence that may shed light on why men are more likely than women to develop aggressive forms of skin cancer has been published in Carcinogenesis.
Researchers at the University of Toronto (U of T), Capital Health's Stollery Children's Hospital in Edmonton, Toronto's Hospital for Sick Children and their international collaborators have discovered a genetic abnormality that causes a type of language impairment in children
In what promises to be a significant step forward in the genome era, the National Human Genome Research Institute (NHGRI) today announced plans to devote a portion of its large-scale sequencing capacity to efforts aimed at identifying the genetic roots of specific diseases that have long eluded gene hunters.
Tourette syndrome is a distressing condition which affects one in every 100 people.
Research by an European Union-supported international team of scientists has shown that polychlorinated biphenyls (PCBs) - synthetic organic chemicals found widely in the environment and absorbed in the diet - may damage sperm.
Researchers have identified the first gene mutation associated with Tourette syndrome - opening a new avenue for understanding the complex disorder that causes muscle and vocal tics.
Abnormal cell division that yields cells with an extra set of chromosomes can initiate the development of tumors in mice, researchers at Dana-Farber Cancer Institute have shown, validating a controversial theory about cancer causation put forth by a scientific visionary nearly 100 years ago.
A team of international researchers has discovered that a specific gene on chromosome 15 regulates inflammation, a finding with implications for a wide range of disorders, including cancer, cardiovascular disease, diabetes, obesity, Alzheimer's, and infections. The findings are published in the October 9 online issue of Nature Genetics.
Researchers at Children's Hospital Boston report using tissue engineering to reconstruct defective tracheas (windpipes) in fetal lambs, first using cells from the amniotic fluid to grow sections of cartilage tube, and then implanting these living grafts into the lambs while still in the womb.
Two New Jersey research teams are reporting discoveries about the biological nature of psychiatric disorders that may bring them closer to the ultimate goal of finding cures for complex diseases, such as autism and schizophrenia.
Researchers at Jefferson Medical College and at the Wadsworth Center in New York have identified a gene defect in mice resulting in a range of abnormalities, from cyclical hair loss and skin cancer to severe problems in normal skin development.
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