Multiple choice

Which of the following individuals is mosaic?

  1. 47, XXX

  2. 47, XYY

  3. 47, XXY

  4. 45, X
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

45, X karyotype is due to nondisjunction or loss of a structurally abnormal X or Y chromosome. They are mosaics, with a cell line containing 46 chromosomes with a structurally abnormal chromosome X or Y.

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