Practice problem
Nondisjunction — Definition & Overview
Image source: By Yu-Jing Liao, Chia-Hsin Liao, Jiunn-Wang Liao, Kuo Yuan, Yu-Zhan Liu, Yi-Shiou Chen, Lih-Ren Chen and Jenn-Rong Yang CC BY 2.0, via Wikimedia Commons
The diagram above is commonly used to display all the chromosomes that a person has. What is it called?