1. Multiple Births
... is one in which two or more fetuses develop at one time in the uterus. This happens when a woman naturally releases more than one egg from her ovaries. Most multiple births are caused from using fertility drugs. The most common types of multiple births are twins. Twins are categorized ... of twins is identical twins. Chances of having identical twins are one in two hundred births (Vaughan 12). Identical twins happen when a single fertilized egg splits usually one to fourteen days after conception (Segal 6). Identical twins are genetically alike. They have the same chromosomes and usuall...
- Word Count: 2837
- Approx Pages: 11
- Grade Level: High School