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6. How would you identify, on a karyotype, a sufferer of regular trisomy 21 Down's Syndrome?
- Extra chromosome 21
- Abnormal chromosome 21
- Absent chromosome 21
7. What is a viable treatment for Klinefelter's Syndrome?
- Oestrogen treatment
- Testosterone treatment
- Growth hormone
- Full time care
8. In Down's Syndrome, what percentage of cases are mosaic?
9. Which of the following is a symptom of Turner's Syndrome?
- Taller than average height
- Rudimentary ovaries
- Testicular atrophy
- Small penis
- Gynecomastia
10. When karyotyping, what is adedd to the cells at the start of metaphase, and why?
- Dye, to make the chromosomes visible.
- A solution of high water potential, to burst the cell.
- Colchinine, to inhibit spindle formation.
- Sulphuric acid, to dissolve the nuclear membrane.