Chromosome 9 News and Research

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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.
Researchers discover ‘recycled’ genes in mammalian genome

Researchers discover ‘recycled’ genes in mammalian genome

Lesser-known gene appears to play greater role in Alzheimer's and dementia-related memory decline

Lesser-known gene appears to play greater role in Alzheimer's and dementia-related memory decline

Genome sequence cannot predict radiation resistance, say researchers

Genome sequence cannot predict radiation resistance, say researchers

Researchers develop model to explore hard-to-study mutations in human genome

Researchers develop model to explore hard-to-study mutations in human genome

Penn researchers find abnormally shortened telomeres in young DMD patients’ muscle stem cells

Penn researchers find abnormally shortened telomeres in young DMD patients’ muscle stem cells

Researchers find correlation between shorter telomeres and presence of heart failure

Researchers find correlation between shorter telomeres and presence of heart failure

Split-brain study using fruit fly provides better understanding of autism

Split-brain study using fruit fly provides better understanding of autism

Japanese scientists uncover new genetic marker for schizophrenia

Japanese scientists uncover new genetic marker for schizophrenia

UAB researchers reveal key role for RSF1 protein in silencing genes

UAB researchers reveal key role for RSF1 protein in silencing genes

Human ancestors responsible for transmitting ancient strains of herpesvirus, study finds

Human ancestors responsible for transmitting ancient strains of herpesvirus, study finds

Study sheds new light on gene fusion in bladder and brain cancer

Study sheds new light on gene fusion in bladder and brain cancer

Distinguishing biothreat look-alikes could aid biological surveillance

Distinguishing biothreat look-alikes could aid biological surveillance

Scientists develop new system to identify and characterize regulatory DNA sequences

Scientists develop new system to identify and characterize regulatory DNA sequences

New research suggests cell immortalization as more complicated process than originally thought

New research suggests cell immortalization as more complicated process than originally thought

Researchers develop and validate new assay that detects gene fusions in solid tumors

Researchers develop and validate new assay that detects gene fusions in solid tumors

Counteracting premature aging

Counteracting premature aging

Duke researchers map evolution of sex chromosomes in fungus linked to human disease

Duke researchers map evolution of sex chromosomes in fungus linked to human disease

Researchers unravel genetic characteristics that increase risk of developing Tourette syndrome

Researchers unravel genetic characteristics that increase risk of developing Tourette syndrome

Study supports genetic testing as first-line diagnostic method for young children with epilepsy

Study supports genetic testing as first-line diagnostic method for young children with epilepsy

Large clinical study reveals the performance of Natera's Panorama® non-invasive prenatal test

Large clinical study reveals the performance of Natera's Panorama® non-invasive prenatal test