Chromosome 3 News and Research

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Humans normally have 46 chromosomes in each cell, divided into 23 pairs. Two copies of chromosome 3, one copy inherited from each parent, form one of the pairs. Chromosome 3 spans almost 200 million base pairs (the building blocks of DNA) and represents approximately 6.5 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 3 likely contains between 1,100 and 1,500 genes.

Genes on chromosome 3 are among the estimated 20,000 to 25,000 total genes in the human genome.

Further Reading

Episome vectors offer fresh angle to gene therapy

Episome vectors offer fresh angle to gene therapy

Study shows long-term benefits for chronic myeloid leukemia patients receiving therapy with imatinib

Study shows long-term benefits for chronic myeloid leukemia patients receiving therapy with imatinib

Genetic mutations and cellular modifications may provide clues to the associations between slight genetic abnormalities and often fatal diseases

Genetic mutations and cellular modifications may provide clues to the associations between slight genetic abnormalities and often fatal diseases

Researchers step closer to cure for common childhood cancer

Researchers step closer to cure for common childhood cancer

Researchers find mutations in a multifunctional protein cause Parkinsonism

Researchers find mutations in a multifunctional protein cause Parkinsonism

70% of cases of spina bifida are preventable by folic-acid supplementation

70% of cases of spina bifida are preventable by folic-acid supplementation

Sex genes of infectious fungus closely resemble human Y chromosome

Sex genes of infectious fungus closely resemble human Y chromosome

Discovery of new gene that protects against lung cancer

Discovery of new gene that protects against lung cancer

Search for genetic key to corneal disease

Search for genetic key to corneal disease

Researchers find two locations in the human genome that may harbor genes that increase the risk of Alzheimer’s disease

Researchers find two locations in the human genome that may harbor genes that increase the risk of Alzheimer’s disease

Improved risk classification for patients with acute lymphoblastic leukemia offers hope for eliminating irradiation

Improved risk classification for patients with acute lymphoblastic leukemia offers hope for eliminating irradiation

Scientists decode the genome sequence of Cryptosporidium hominis, one of the most common causes of waterborne diseases in humans

Scientists decode the genome sequence of Cryptosporidium hominis, one of the most common causes of waterborne diseases in humans

New insight into the role of the breast cancer gene known as BRCA2

New insight into the role of the breast cancer gene known as BRCA2

Australian platypus research has implications for understanding the evolution of human sex determination

Australian platypus research has implications for understanding the evolution of human sex determination

Newly discovered gene could be a significant contributor to diabetes in Americans

Newly discovered gene could be a significant contributor to diabetes in Americans

Gene mutation causes Parkinson's disease in some families

Gene mutation causes Parkinson's disease in some families

Molecule that helps DNA replicate may make good target for cancer therapy

Molecule that helps DNA replicate may make good target for cancer therapy

Discovery of the gene for a form of Joubert Syndrome

Discovery of the gene for a form of Joubert Syndrome

Researchers trim count of human genes to 20,000-25,000

Researchers trim count of human genes to 20,000-25,000

Scientists have devised a novel way to repair one of the genetic mutations that causes ataxia-telangiectasia

Scientists have devised a novel way to repair one of the genetic mutations that causes ataxia-telangiectasia