Turner syndrome, also known as monosomy X, is a condition that occurs in females when one of the X chromosomes is missing or partially missing. In a typical karyotype analysis for Turner syndrome, you would see 45 chromosomes instead of the usual 46, with only one X chromosome present (45,X).
Therefore, the chromosomal analysis of this karyotype reveals that Turner syndrome results from the absence of one X chromosome in females, leading to a total of 45 chromosomes instead of the normal 46. This condition can also arise from structural abnormalities of the X chromosome, but the most common cause is the complete or partial loss of one X chromosome.
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