14. Turner syndrome.
| a. | is associated with 47 XXX | |
| b. | 98% of affected pregnancies will fail to reach term | |
| c. | is present in about 1% of conceptions | |
| d. | may be suspected on scan evidence of cystic hygroma | |
| e. | removal of gonads is advocated if a mosaic involving 46XY exists | |
| f. | ~ 10% of neonates with Turner syndrome have heart defects |