SDS150R Chapter Notes - Chapter 3: Prenatal Development, Human Reproduction, Congenital Disorder

• School: University of Waterloo
• Department: Social Development Studies
• Course: SDS150R
• Professor: Peter Hymmen

Document Summary

Prenatal development starts from conception to birth. Babies can be affected by a variety of agents that can cause congenital anomalies or the child can be born too son or too small. Each child receives a combination of genes that will shape our experiences throught the rest of our lives. Women produce one ovum (egg cell) every month. If the ovum is not fertilized it disintegrates and released as part of the menstrual fluid. If a couple has intercourse during the time the ovum is in the fallopian tube, one of them sperms will penetrate the wall of the ovum. Gametes: cells that unite at conception (ova in females; sperm in. One y and one x chromosomes develop into male. Females on carry x chromosomes, males carry both x and. Fraternal twins, or twins that come from two sets of ova and sperm. Dizygotic twins, meaning they originate from 2 zygotes, and are not.