KaryoDraw

Normal male karyotype

46,XY

Also known as: 46 XY

46,XY is the standard male karyotype: 46 chromosomes made up of 22 pairs of autosomes, one X, and one Y. It is the baseline that every abnormal karyotype is read against.

Open in the interactive visualizer →

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Normal male karyotype (46,XY) drawn by KaryoDraw.

What the notation means

46
total chromosome count (the normal human number)
XY
sex chromosomes: one X, one Y (usual male karyotype)

KaryoDraw is a free ISCN 2024 karyotype visualizer, a StudyRare tool. It is an educational visualizer of cytogenetic nomenclature, not a diagnostic tool.