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

Major breakthrough in understanding how malaria parasite grows and multiplies

Major breakthrough in understanding how malaria parasite grows and multiplies

New mechanism for repair of chromosomal breaks

New mechanism for repair of chromosomal breaks

Growing eggs and sperm to treat infertility

Growing eggs and sperm to treat infertility

Discovery of potential cause of age-related macular degeneration

Discovery of potential cause of age-related macular degeneration

Research provides new insights into molecular basis of X-chromosome inactivation

Research provides new insights into molecular basis of X-chromosome inactivation

Natural antioxidant reverses reproductive harms caused by BPA exposure in worms

Natural antioxidant reverses reproductive harms caused by BPA exposure in worms

Researchers discover new mutational phenomenon chromothripsis in cancer

Researchers discover new mutational phenomenon chromothripsis in cancer

Cancer mutations may arise decades before diagnosis

Cancer mutations may arise decades before diagnosis

Developing tests for genetic signs could lead to earlier cancer detection

Developing tests for genetic signs could lead to earlier cancer detection

Coronavirus could spread explosively, tight control needed

Coronavirus could spread explosively, tight control needed

Daily alcohol consumption ages brain

Daily alcohol consumption ages brain

Research opens the door to healthier white bread

Research opens the door to healthier white bread

Successful gene therapy trial in patients with X-linked Chronic Septic Granulomatosis

Successful gene therapy trial in patients with X-linked Chronic Septic Granulomatosis

New gene correction therapy for hereditary muscular disease among children

New gene correction therapy for hereditary muscular disease among children

Healing and hope for families affected by fragile X in Eastern Europe

Healing and hope for families affected by fragile X in Eastern Europe

New discovery changes the understanding of gene expression

New discovery changes the understanding of gene expression

Oldest African DNA on record shines light on the deep human past

Oldest African DNA on record shines light on the deep human past

First randomized clinical trial compares targeted therapies for acute lymphoblastic leukemia

First randomized clinical trial compares targeted therapies for acute lymphoblastic leukemia

3D structure of DNA is 'rewired' in hormone-resistant ER+ breast cancers

3D structure of DNA is 'rewired' in hormone-resistant ER+ breast cancers

Princeton researchers uncover vital role played by a protein elevated in many cancers

Princeton researchers uncover vital role played by a protein elevated in many cancers