KROK 1 2012 – Question 193 · KROK (Medicine) · Biology
Sex chromosomes of a woman didn’t separate and move to the opposite poles of a cell during gametogenesis (meiosis). The ovum was impregnated with a normal spermatozoon. Which chromosomal disease can be found in her child?
- A. Edwards’ syndrome
- B. Cat cry syndrome
- C. Down’s syndrome
- D. Patau’s syndrome
- E. Turner’s syndrome
Hint
Work out which sex chromosome combinations are possible in the zygote when the egg carries either two sex chromosomes or none, and which disorder results.
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