Tetraploidy _
Definition:

Tetraploidy is a very rare chromosomal disorder which leads to various abnormalities. Infants are often stillborn or die within months of birth


Symptoms and Signs:

Symptoms include beaked nose, retarded fetal growth, lack of ear cartilage, small jaw, underdeveloped kidneys, short upper lip groove, clubfoot, narrow forehead, small head, and developmental delays.