Sex Chromosome
A chromosome that determines an individuals sex
Real World Example
Imagine you're at a party with a strict dress code that dictates whether you can enter the main event or not. Just like how the dress code determines which section of the party you can join, sex chromosomes determine the biological sex of an individual. In this analogy, the dress code is akin to the sex chromosome, with its rules deciding whether you enter the 'male' or 'female' section of the party, just as the presence of XX or XY chromosomes determines an individual's sex.
Practice Version
