A nurse reads in a patient's chart that the patient has a condition caused by monosomy X. What can the nurse conclude about this patient?
A.
Female with one missing X chromosome
B.
Female with very feminine features
C.
Male with one extra X chromosome
D.
Male with very feminine features
ANS: A
A monosomy condition is one in which only one of the paired chromosomes is present. In this case, the patient would have one or more cells with one X chromosome and nothing else. Turner's syndrome is the most common example of this defect; children born with this syndrome are female and exhibit juvenile external genitalia, underdeveloped ovaries, short stature, webbing of the neck, and possible intellectual deficits and cardiac disorders.
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