Final answer:
Congenital heart diseases are indeed genetic malformations of the fetal heart, caused by abnormalities in the heart's development during embryonic stages.
Step-by-step explanation:
True. Congenital heart diseases are genetic malformations of the fetal heart. They occur due to abnormalities in the development of the heart during embryonic stages, which are primarily caused by genetic factors.
For example, conditions such as atrial septal defect (ASD), ventricular septal defect (VSD), and Tetralogy of Fallot (TOF) are all examples of congenital heart diseases that result from genetic malformations.
Learn more about Congenital heart diseases