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.
New technique to study genetic changes could enhance cancer diagnosis

New technique to study genetic changes could enhance cancer diagnosis

Study indicates new element involved in genome instability

Study indicates new element involved in genome instability

Existing drugs could help subgroup of patients with osteosarcoma, suggest scientists

Existing drugs could help subgroup of patients with osteosarcoma, suggest scientists

MIT biologists identify how the immune system eliminates genetically imbalanced cells

MIT biologists identify how the immune system eliminates genetically imbalanced cells

Penn/CHOP research helps to better understand cause of pediatric and treatment-related leukemias

Penn/CHOP research helps to better understand cause of pediatric and treatment-related leukemias

Impairment of specific gene increases susceptibility to opioid addiction and binge eating, study shows

Impairment of specific gene increases susceptibility to opioid addiction and binge eating, study shows

Anorexia nervosa linked to genetic anomalies on chromosome 12

Anorexia nervosa linked to genetic anomalies on chromosome 12

New cancer drug shows promise to treat leukemia in mouse models

New cancer drug shows promise to treat leukemia in mouse models

Study finds evidence that genes influence empathy

Study finds evidence that genes influence empathy

Researchers uncover protective mechanism of rotifers that may have implications for aging research

Researchers uncover protective mechanism of rotifers that may have implications for aging research

Researchers find new way to block type 1 diabetes

Researchers find new way to block type 1 diabetes

Phase 2 clinical study examines Alzheimer's disease drug to treat adults with Down syndrome

Phase 2 clinical study examines Alzheimer's disease drug to treat adults with Down syndrome

Collaborative effort to develop rare disease patient registries

Collaborative effort to develop rare disease patient registries

Innate genetic advantage contributes to better outcomes in newborn infant girls than boys, research shows

Innate genetic advantage contributes to better outcomes in newborn infant girls than boys, research shows

Scientists identify key gene in 22q11.2 that contributes to genitourinary birth defects

Scientists identify key gene in 22q11.2 that contributes to genitourinary birth defects

UCLA study characterizes brain differences between people with genetic risk for schizophrenia, autism

UCLA study characterizes brain differences between people with genetic risk for schizophrenia, autism

Research findings may provide answers for infertility in older women

Research findings may provide answers for infertility in older women

Sperm epigenetics and fertility

Sperm epigenetics and fertility

Weekly doses of steroids help hasten recovery in muscle injuries

Weekly doses of steroids help hasten recovery in muscle injuries

Study identifies first genetic locus for anorexia nervosa

Study identifies first genetic locus for anorexia nervosa