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chromosome: Quick Facts

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Weakened chromosome anchors may help explain age-related declines in egg quality • Oct. 26, 2026, 1:40 PM ET (Medical Xpress)

Photos and Videos

Diagram showing the step-by-step process of DNA packaging: DNA wraps around histone proteins to form nucleosomes, which condense into chromatin fibers that further coil and fold to create a compact chromosome structure.
chromosomes
chromosome
Klinefelter syndrome
Behaviour of chromosomes at meiosis.
Diagram showing the process of crossing over during meiosis, where homologous chromosomes exchange genetic material, followed by two cell divisions that result in four genetically unique haploid daughter cells.
Centromere and chromatids in cell division
Karyotype and human chromosome number
A diagram showing the stages of mitosis in somatic cell division: prophase, prometaphase, metaphase, anaphase, telophase, and cytokinesis, with labeled structures such as chromosomes, spindle fibers, and nuclear envelope in each phase.
Labeled diagram of a bacterial cell showing key structures including capsule, cell wall, plasma membrane, cytoplasm, chromosome, plasmid, ribosomes, mesosome, pili, and long flagella.
Illustration of human chromosomes in red arranged in pairs next to a white silhouette of a human figure on a dark background.
What are chromosomes?
Know how unlike humans some organisms like naked mole rats, rock fish, lobsters, and bristlecone pines can pause their aging process
Mitosis: The process of cell division and growth explained
How gene therapy can treat diseases
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Key People

Thomas Hunt Morgan
Thomas Hunt Morgan
American biologist
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Dorothy Maud Wrinch
British-American mathematician and biochemist
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Cyril Dean Darlington
British biologist
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Theodor Heinrich Boveri
German cytologist
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Walter Sutton
American geneticist
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Walther Flemming
German biologist
Edmund Beecher Wilson
Edmund Beecher Wilson
American biologist
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Theophilus Shickel Painter
American zoologist

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