Down Syndrome

By: Haylie Gwaltney

What is Down Syndrome?

Down Syndrome is a birth defect caused by a gene problem that happens before birth. During embryo development the embryo normally inherits 46 chromosomes, 23 from each parent. A fetus with down syndrome has inherited 47 chromosomes resulting in differences of boy structure and brain development. It is a structural effect.

Work Cited

  • "Down Syndrome." KidsHealth - the Web's Most Visited Site about Children's Health. Ed. Mary L. Gavin. The Nemours Foundation, 01 Sept. 2015. Web. 14 Oct. 2015.
  • "Down Syndrome." KidsHealth - the Web's Most Visited Site about Children's Health. Ed. Mary L. Gavin. The Nemours Foundation, 01 Sept. 2015. Web. 14 Oct. 2015.
  • "Down Syndrome-Symptoms." WebMD. WebMD, n.d. Web. 14 Oct. 2015.