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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 packaging …

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

    Jul 7, 2025 · Humans typically have 23 pairs of chromosomes for a total of 46 chromosomes. The first 22 are called autosomes and the last pair are sex chromosomes. Chromosomes organize and store …

  3. Chromosomes Fact Sheet - National Human Genome Research Institute

    Aug 15, 2020 · Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). …

  4. 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.

  5. What is a chromosome?: MedlinePlus Genetics

    Jan 19, 2021 · Chromosomes are not visible in the cell’s nucleus—not even under a microscope—when the cell is not dividing. However, the DNA that makes up chromosomes becomes more tightly …

  6. CHROMOSOMAL 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-shaped in …

  7. What is a Chromosome? Structure, Function, and Role in Genetics

    Apr 17, 2025 · Humans have 46 chromosomes, arranged in 23 pairs. One chromosome of each pair comes from your mother, the other from your father. That means you carry genetic material from …

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

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

  9. What Are Chromosomes? - University of Utah

    Each chromosome includes a single, linear molecule of DNA with its own set of genes. Chromosomes are numbered according to their size, and genes are arranged along them in a specific order. So a …

  10. CHROMOSOMAL | English meaning - Cambridge Dictionary

    CHROMOSOMAL definition: 1. relating to chromosomes (= the parts of the cell that carry genetic information): 2. relating…. Learn more.