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Genetic testing of embryos: an introduction

A short, foundational introduction to preimplantation genetic testing: what a biopsy involves, the difference between testing for chromosome number and testing for a known condition, and what results can and cannot tell you.

TRIO Fertility (Canada)Recorded / published: 18 April 2023IVF TreatmentGenetics and PGTFertility TreatmentAll learning videos

A simpler starting point than the in-depth genetic testing webinar in this library.

Genetic testing of embryos is not recommended for everyone. Results can be inconclusive or mosaic, testing does not create healthy embryos, and it does not remove the need for antenatal screening in pregnancy. Genetic counselling is part of the decision in Canada.

Key takeaways

  • Testing is carried out on a small number of cells taken from a blastocyst.
  • PGT-A looks at chromosome number; PGT-M and PGT-SR look for a known familial condition or rearrangement.
  • Results can be inconclusive, and testing does not guarantee a pregnancy.

Related Antega guides

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TRIO Fertility (Canada)6 February 2026

Genetic testing and fertility

A webinar on genetic testing in fertility care, covering carrier screening, genetic counselling and testing embryos during IVF.

Read the guide

References

  • TRIO Fertility patient education video, Canada
  • CFAS guidance on preimplantation genetic testing

This video was produced by TRIO Fertility (Canada) and is shared for education only. It is not medical advice and does not replace guidance from your own doctor or fertility clinic. Naming an organisation does not imply a partnership with Antega.