S. No. |
Syndrome |
Cause |
Characteristics ofaffected individuals |
Sex Male/Female/Both |
1. |
Down’s |
Trisomy of 21 |
‘a’ (i) (ii) |
‘b’ |
2. |
‘c’ |
XXY |
Overall masculinedevelopment |
‘d’ |
3. |
Turner’s |
45 with XO |
‘e’ (i) (ii) |
‘f’ |
a. Short stature/small round head/furrowed tongue/partially open mouth/ mental development retarded.
b. Both.
c. Klinefelter’s syndrome
d. Male
e. i. Sterile ovaries;
ii. Lack of secondary sexual characters.
f. Female