The structure of DNA lends itself easily to DNA replication. Each side of the double helix runs in opposite (anti-parallel) directions. The beauty of this structure is that it can unzip down the middle and each side can serve as a pattern or template for the other side (called semi-conservative replication).
Rupture of the uterus during pregnancy or labor is a serious emergency that can be fatal to both mother and fetus. Uterine rupture results in: 1  bleeding; 2  rupture of the amniotic sac (bag of waters); 3  partial or full delivery of the fetus into the abdominal cavity; and. 4  loss of oxygen delivery to the fetus.
Premature rupture of membrane (PROM): PROM is a common complication of pregnancy in which the amniotic sac breaks prior to the onset of labor but at or after 37 weeks of gestation. The causes of premature rupture of membrane vary, though the condition occurs in 8-10% of pregnancies. 1. Preterm premature rupture of membrane (pPROM): pPROM refers to any incidence of PROM that occurs prior to 37 weeks.