Genetics
Chromosomes carry our genes in 23 pairs, one of each pair from the egg and one from the sperm. Errors in chromosome number are the single most common reason embryos fail to implant or miscarry, and they become more frequent with maternal age.
Also known as: chromosomes
Sources
- Royal Australian and New Zealand College of Obstetricians and Gynaecologists (ranzcog.edu.au)
- Royal College of Pathologists of Australasia (rcpa.edu.au)
Last reviewed: 10 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.