Chapter 42, Problem 3DAA

Summary Introduction

To explain: The type of defect that is more than twice the risk to occur in the multiple-births than in single newborns.

Concept introduction: During the gestation period, the mother can have a single birth or multiple births. A single birth is one in which only one fetus is carried during the gestation period in the womb. A multiple birth is one in which more than one fetus is carried during the gestation period such as twins, triplets, quadruplets, and so on. Carrying more than one fetus in the womb results in the insufficient supply of nutrients to the developing fetus. These fetuses become still-born or born with abnormalities.