Sex Chromosome
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Example:
Imagine you're sorting through a deck of cards to find the joker card that determines the game's wild card rules. Just like the joker card sets the rules for what can be played in the game, sex chromosomes determine an individual's sex. In this analogy, the deck of cards represents the complete set of chromosomes, and the joker card is akin to the sex chromosome; it’s the one card, or chromosome, that establishes the overall rule or trait—in this case, whether an individual is male or female.
Practice Version
Sex Chromosome: A chromosome that determines an individual's sex. sex chromosome. A sex chromosome is a type of chromosome that carries genes responsible for determining whether an individual develops as male or female.