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

Researchers decipher evolution of the Y chromosome in great apes

Researchers decipher evolution of the Y chromosome in great apes

Cancer mutations are found in distinct regions that vary based on genomic structure and mutation

Cancer mutations are found in distinct regions that vary based on genomic structure and mutation

First biobank in Australia for chromosome 15 disorders

First biobank in Australia for chromosome 15 disorders

Genetic heritage from Neanderthals linked to severe COVID-19

Genetic heritage from Neanderthals linked to severe COVID-19

Neanderthal gene variant linked to higher risk of developing severe COVID-19

Neanderthal gene variant linked to higher risk of developing severe COVID-19

Life-threatening COVID-19 associated with specific genetic variants

Life-threatening COVID-19 associated with specific genetic variants

Auto-antibodies may explain why some people develop severe COVID-19

Auto-antibodies may explain why some people develop severe COVID-19

New drug offers hope for young boys with Duchenne muscular dystrophy

New drug offers hope for young boys with Duchenne muscular dystrophy

Study sheds new light on the role of Y chromosome genes

Study sheds new light on the role of Y chromosome genes

About 10% patients with severe disease create auto-antibodies that attack the immune system

About 10% patients with severe disease create auto-antibodies that attack the immune system

Men are dying from COVID-19 at a higher rate than women

Men are dying from COVID-19 at a higher rate than women

New methods help to accurately identify cancers’ hidden genetic losses, duplications

New methods help to accurately identify cancers’ hidden genetic losses, duplications

Sex and gender not receiving enough attention in COVID-19 trials

Sex and gender not receiving enough attention in COVID-19 trials

Exploring sex differences in gene expression

Exploring sex differences in gene expression

Inherited variation in GATA3 gene is linked to relapse in children with acute lymphoblastic leukemia

Inherited variation in GATA3 gene is linked to relapse in children with acute lymphoblastic leukemia

Study uncovers genetic vulnerability in breast cancers tumors

Study uncovers genetic vulnerability in breast cancers tumors

Study sheds new light on function and regulation of APOBEC3B in adrenocortical carcinoma

Study sheds new light on function and regulation of APOBEC3B in adrenocortical carcinoma

Activation of fatty acid receptor causes masculinization of Japanese rice fish

Activation of fatty acid receptor causes masculinization of Japanese rice fish

Researchers identify a pattern in cancer’s chromosomal chaos

Researchers identify a pattern in cancer’s chromosomal chaos

Misfiring brain cells may create swallowing difficulties in children with neurodevelopmental disorders

Misfiring brain cells may create swallowing difficulties in children with neurodevelopmental disorders