PATHOLOGY MCQ
GENETICS AND DISEASE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What genetic disorder results in 45 chromosomes in each of the body cells? (3.2.2)
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Turner’s syndrome
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Down syndrome
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Klinefelter’s
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Jacobs syndrome
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Explanation:
Detailed explanation-1: -Turner syndrome results when one normal X chromosome is present in cells and the other sex chromosome is missing or structurally altered. The missing genetic material affects development before and after birth.
Detailed explanation-2: -To diagnose Turner syndrome, doctors use a special blood test that looks at chromosomes, called a karyotype test (chromosomal analysis). Results that indicate TS show only one X chromosome instead of two X chromosomes, with a total of 45 chromosomes instead of the usual 46.
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