Twinning would occur, in principle, if the egg cell and a polar body were both fertilized by separate sperms.
12.
Female animals employ a slight variation on this pattern and produce one large ovum and two small polar bodies.
13.
Immediately after spawning, the eggs are delayed in their capability for fertilization until after the release of polar bodies.
14.
Meiotic errors can lead to aneuploidy in the polar bodies, which, in the majority of cases, produces an aneuploid zygote.
15.
It is generally agreed that it is best to analyse both polar bodies in order to minimize the risk of misdiagnosis.
16.
Verlinsky's " insight " was that he could analyze the polar body to look for certain genetic defects in the resulting egg.
17.
It sheds the other in a discard package called a polar body, while hoping to gain a new set from a visiting sperm.
18.
Polar bodies serve to eliminate one half of the diploid chromosome set produced by meiotic division in the egg, leaving behind a haploid cell.
19.
Compared to a blastocyst biopsy, a polar body biopsy can potentially be of lower costs, less harmful side-effects, and more sensitive in detecting abnormalities.
20.
A polar body is a cell structure found inside an ovum, which includes the package of chromosomes ejected by the egg before fertilization by sperm.
