A DNA double helix, large X and Y letters, a magnifying glass, and a scroll showing a chromosome chart.

Are you smart enough to beat our sex chromosomes quiz and claim the top ranking?

Difficulty

Hard

Questions

Volts

3/q

X or Y? This single pair dictates the stakes of biological inheritance. From SRY genes to hemophilia risks, your genetic blueprint doesn't play around. Prove you can decode the sex-linked patterns that define us. The clock is ticking—do you have the vision to spot the trait?

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A faceted brown teardrop, a tan DNA double helix, a dark gray square, and a tan oval with a curved line.

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A graphic of an X-shaped chromosome, a DNA double helix, and a magnifying glass over a circular shape with abstract patterns.

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A pea pod, a flower, a laboratory flask, a DNA double helix, and a person standing next to dark blocks.

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