Final answer:
Females have XX chromosomes and males have XY chromosomes to determine biological sex.
Explanation:
In humans, females have XX chromosomes, while males have XY chromosomes. The presence of a Y chromosome determines male characteristics, and its absence results in female characteristics.
XX chromosomes signify female individuals, as they inherit one X chromosome from each parent, making them genetically female.
Humans possess X and Y chromosomes, where males have an XY pair and females have an XX pair, impacting biological sex determination.
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