Multiple choice

The absence of an entire sex chromosome is observed in _______________________.

  1. 47, XXY

  2. 47, XYY

  3. XX male syndrome

  4. mixed gonadal dysgenesis

  5. 45, X Turner syndrome
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Turner syndrome 45, X encompasses several conditions in human females, of which monosomy X (absence of an entire sex chromosome, the Barr body) is most common. It is a chromosomal abnormality in which all or part of one of the sex chromosomes is absent or has other abnormalities.

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