Normal female karyotype
46,XX
Also known as: 46 XX
46,XX is the standard female karyotype: 46 chromosomes made up of 22 pairs of autosomes and two X chromosomes. It is the baseline that every abnormal karyotype is read against.
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What the notation means
46- total chromosome count (the normal human number)
XX- sex chromosomes: two X (usual female karyotype)