Varving nunbers of determinations
for the systems Listed in Tables 1 and
Zaye due toa considerable time lapse between collection of the samples
aud their reeeipt tn Lhe laboratory.
As a consequence, elther no
petcetn or an unslear pattern (even after repetition) was occasionally
obtained for a given trait.
Three persons had the PCN, -7 phenotype.
Because of the occurrence of this variant in polymorphic proportions
elsewhere ‘im Micronesia (see below) , we tabulate it.with the: polymorphisms.
These three individuals were related as siblings, one of whose parents
was tested and normal, the other untested.
2.
Rare variants.--One rare variant was observed in a total of
4047 determinations.
This was a fast albumin variant detected by only
one of the three screening systems ‘in use for albumins, namely, the pH
5.0. sodium acetate buffer system of Weitkamp et al (10).
is
illustrated in Fis
wg.
Ll.
‘The variant
Its electrophoretic behavior appears similac
to that of albumin tedén as reported by Weitkamp et al (10).
Lt
occurred in a girl, aged 5, whose mother was normal (and not exposed
to fall-out)
and father not available for g tudy.
The fact that the
variant has heen demonstrated in only a single person with only one
technique leaves its identification somewhat unsatisfactory, but the
situation cannot be improved upon at present.
DISCUSSION
Ll.
The polymorpliisma.--Gene frequencies for the 6 polymorphisms
encountered all’ fell within the rather considerable range reported in
other studies of Micronestans (12, 13, 14, 15, 16, 17, 18, 19).
Dongs