Chromosomes Fact Sheet - National Human Genome Research Institute
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). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.

Chromosome - Wikipedia
A chromosome is a package of DNA with 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 proteins; in eukaryotic cells the most important of these proteins are the histones.

Chromosome - Definition, Function & Structure - Biology Dictionary
A chromosome is a string of DNA wrapped around associated proteins that give the connected nucleic acid bases a structure. During interphase of the cell cycle, the chromosome exists in a loose structure, so proteins can be translated from the DNA and the DNA can be replicated.

What is a chromosome? - MedlinePlus
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 many times around proteins called histones that support its structure.

DNA vs Genes vs Chromosomes: An Overview - Cleveland Clinic
Chromosomes are structures that look like thread, which live in the nucleus (center) of cells. Chromosomes contain DNA and protein, and they come in different sizes. Proteins called histones allow them to pack up small enough to fit in a nucleus.

How many chromosomes do people have? - MedlinePlus
How many chromosomes do people have? In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.

What are Chromosomes? - University of Utah
This DNA is distributed among 23 chromosomes, of which we have two sets. We inherit one set from each parent. 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.

Chromosome | Structure & Function | Britannica
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 - National Human Genome Research Institute
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 (including humans), chromosomes reside in the nucleus of cells.

Chromosomes & mtDNA - MedlinePlus
Read about each of the human chromosomes and mitochondrial DNA (mtDNA) and the health implications of genetic changes.