Fraternal Twins

question 58

Multiple Choice

Fraternal twins:

• A) have only one placenta.
• B) have two placentas.
• C) must always have the same biological father.
• D) are genetically identical.

---

Definitions:

Craniostenosis

A condition characterized by the premature fusion of one or more sutures of an infant's skull, affecting skull and brain growth.

Myelomeningocele

A type of spina bifida where there is a hernia of the spinal cord and its meninges through a defect in the vertebral column.

Spinal Column

The series of vertebrae extending from the skull to the lower back, encasing the spinal cord and providing structural support to the body.

Herniation

The abnormal protrusion of an organ or tissue through a structure or part that normally contains it.