
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 …
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.
Chromosomes: Definition, Structure & Function - Cleveland Clinic
Jul 9, 2025 · 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 …
What is a chromosome and how many do humans have? - YourGenome
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.
Chromosome | Structure & Function | Britannica
Dec 7, 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.
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-shaped in …
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 DNA tightly coiled …