polar body in a sentence

1. Overall polar body analysis offers many advantages.

2. Does polar body diagnosis always indicate if the transferred embryo is healthy?

3. If the egg (the egg itself and its polar body) is impregnated by two male cells.

4. In individual cases it may happen that not every polar body can be subjected to an analysis.

5. the exact mechanism of fertilization could not be determined but the study stated that it was unlikely to be a case of polar body twinning.

6. Therefore, the eggs are artificially fertilized by injection of each sperm (ICSI) and further developed during the period of the polar body examination.

7. The detection of chromosomes is also technically difficult because the first polar body contains only two DNA copies, and the second polar body only one copy.

8. The results showed that in 140 combinations of polar bodies and eggs that were analysed 125 (89 %) polar body analyses confirmed the chromosomal status of the eggs and 15 (11 %) did not.

9. Furthermore, they were able to show that the abundance of mRNA in each egg cell correlated with their ability to find it in the polar body, suggesting that what’s expressed in the egg is present in the polar body.