About 318,000 results
Open links in new tab
  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: 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 …

  3. Chromosomes Fact Sheet - National Human Genome Research …

    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 …

  4. What is a chromosome?: MedlinePlus Genetics

    Jan 19, 2021 · Chromosomes are found in the nucleus of each cell. Learn more.

  5. Chromosomes- Definition, Structure, Types, Model, Functions

    Aug 3, 2023 · The proteins that bind to the DNA to form eukaryotic chromosomes are traditionally divided into two classes: the histones and the non-histone chromosomal proteins. The …

  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 …

  7. CHROMOSOMAL | English meaning - Cambridge Dictionary

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

  8. Definition of chromosome - NCI Dictionary of Genetics Terms

    Chromosomes have proteins called histones that bind to DNA. DNA has two strands that twist into the shape of a spiral ladder called a helix. DNA is made up of four building blocks called …

  9. Chromosome Structure | Biology for Majors I - Lumen Learning

    There are a number of ways that chromosomes are compacted. In the first level of compaction, short stretches of the DNA double helix wrap around a core of eight histone proteins at regular …

  10. Chromosome - National Human Genome Research Institute

    2 days ago · Chromosomes are threadlike structures made of protein and a single molecule of DNA that serve to carry the genomic information from cell to cell. In plants and animals …