Basics of Chromosomes

Basics of Chromosomes

A chromosome is an organized package of DNA found in the nucleus of the cell. Different organisms have different numbers of chromosomes. Humans have 23 pairs of chromosomes--22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y. Each parent contributes one chromosome to each pair so that offspring get half of their chromosomes from their mother and half from their father.

Basics of Chromosomes
Images and animations are courtesy of the National Human Genome Research Institute's Talking Glossary (http://www.genome.gov/glossary/).

Materials for Basics of Chromosomes

Animation

Chromosome Map 3D Animation

Description: A 3D animation of a chromosome map

DNA Molecule - How DNA is Packaged

Description: An animation of the packaging of DNA into chromosomes

Articles/Research

Chromosomes

Description: An overview on chromosomes

Chromosomes and Cytogenetics

Description: Detailed information on chromosome structure, analysis, and disorders

Games

Make a Karyotype

Description: A karyotype matching game