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.
Uterus During Pregnancy. The uterus is a distensible organ the size of a closed fist. It grows and changes to become large enough to accommodate a full-term baby. It is held in its position by ligaments, which stretch as the uterus grows. Functions of the uterus during pregnancy. During pregnancy, the uterus: