Chromosome number of partial
hydatidiform mole is-
a) 46 XX
b) 45 XO
c) 46 XXY
d) 69 XXX
Correct Answer - D
Ans. D. 69XX
A partial hydatidiform mole is a triploid pregnancy with 69 instead of
46 chromosomes and another strange complication of the
reproductive process.
Partial hydatidiform mole can be identified by ultrasound showing
placenta tissue, some hygromatous cysts, some fetal oddities, but
no clear fetus structure.
Ultrasound is strictly an indicator. After spontaneous abortion or
dilation and curettage, tissue needs to be examined by pathology
and cytogenetics needs to be determined.
If a triploid karyotype is determined as 69, XXX, 69XXY, or 69 XYY
[6], then a partial mole can be confirmed.