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  1. Chromosome - Wikipedia

    A chromosome is a package of DNA containing part or all of the genetic material of an organism. In most chromosomes, the very long thin DNA fibers are coated with nucleosome -forming …

  2. Chromosomes Fact Sheet - National Human Genome Research …

    Aug 15, 2020 · Chromosomes are thread-like structures located inside the nucleus of animal and plant cells.

  3. Chromosomes: Definition, Structure & Function - Cleveland Clinic

    What are chromosomes? Chromosomes are long strings of DNA (instructions that make your body work), wrapped around special proteins (histones) to make them compact enough to fit …

  4. CHROMOSOME Definition & Meaning - Merriam-Webster

    The meaning of CHROMOSOME is any of the rod-shaped or threadlike DNA-containing structures of cellular organisms that are located in the nucleus of eukaryotes, are usually ring …

  5. Chromosome | Structure & Function | Britannica

    Dec 12, 2025 · chromosome, the microscopic threadlike part of the cell that carries hereditary information in the form of genes. A defining feature of any chromosome is its compactness.

  6. What is a chromosome and how many do humans have?

    A chromosome is a tightly wound bundle of DNA. It’s the way DNA is packaged in animal and plant cells – contrasting with bacteria where DNA floats freely around the cell.

  7. What is a chromosome?: MedlinePlus Genetics

    Jan 19, 2021 · What is a chromosome? In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of …

  8. Definition of chromosome - NCI Dictionary of Genetics Terms

    A structure found inside the nucleus of a cell. A chromosome is made up of proteins and DNA organized into genes. Each cell normally contains 23 pairs of chromosomes.

  9. CHROMOSOME Definition & Meaning | Dictionary.com

    CHROMOSOME definition: any of several threadlike bodies, consisting of chromatin, that carry the genes in a linear order: the human species has 23 pairs, designated 1 to 22 in order of …

  10. Chromosome: What It Is, Its Structure, and Function

    Aug 4, 2025 · What Are Chromosomes? Chromosomes are structures located inside the nucleus of animal and plant cells, composed of protein and deoxyribonucleic acid (DNA). They are …