Meiosis is the special division experienced by cells that will create eggs in females and sperm in males. Chromosome reduction is needed to form an embryo with the same amount of information as the parents.
Tag: embryo formation
During pregnancy, women experience many physical and emotional changes which vary during late pregnancy until the moment of labour.
Embryos can be classified in 4 categories –from A to D– ranging from best quality to least developed embryos. This classification is mainly visual and rather subjective, but there are also several studies to identify their metabolic activity.