| (a) |
..Is
acquired by long stay in the Tropics. |
| (b) |
..Is
inherited from either father or mother, not both. |
| (c) |
..Occurs
when both parents pass on abnormal haemoglobin genes, at least one
of which is the sickle gene. |
| (d) |
..Confers
immunity against malaria. |
| (e) |
..Does
not occur in white people. |
| (f) |
..Cannot
occur when only one parent has the sickle gene. |
| (g) |
..Is
so serious no patient has attained 60 years of age. |
| (h) |
..Is
known as sickle cell anaemia only when both parents pass on a sickling
gene i.e. S from father, S from mother, making "SS". |
| (i) |
..Diagnosis
is not compatible with a haemoglobin level of 15 gram/dl (Normal
range 13.2-17.0 male; 11.5-15.5 female). |
|
(j)
|
..Patients
seldom go through life without regular blood transfusion. |
