CLD 204 Chapter 6: Chapter 6 notes

• School: Ryerson University
• Department: Early Childhood Studies
• Course: CLD 204
• Professor: Rachel Caplan

Document Summary

The two cell nuclei lie side by side for a few hours before they merge to form a zygote (the fertilized egg with forty-six chro(cid:373)oso(cid:373)es). This is at this i(cid:374)sta(cid:374)t that o(cid:374)e"s ge(cid:374)etic potential is determined. During the germinal period, the zygote splits into two cells through a process called mitosis. During the first two weeks of what is considered pregnant, the women is not pregnant. Zygotic period (conception 1st week: by the end of the first week, the zygote is a size of a small round disk about. 2. 5mm: because the mother-to-be may not be aware that she is pregnant, it is estimated that approximately 50% of fertilized eggs spontaneously abort during the first trimester. Congenital malformations refers to a condition with which the infant if born but does not refer to the specific defect: by the end of the first month, the embryo is about 6mm long and weights about.