GROUP TOPIC: Edward Syndrome

Question 1

-A rare but serious genetic disorder in babies
-Majority of people with this syndrome die within the fetal stage.
-Also known as trisomy 18
-Characterized by a wide range of abnormalities involving the brain, heart, kidneys, stomach, and craniofacial structures.
-Occurs in about one in every five thousand live births.
-Women who are older than age 30 are at a greater risk of bearing a child with the syndrome.

Answer 1

Edward’s syndrome

Question 2

This condition results from ______, an error in cell division that leads to an extra chromosome in the affected individual’s cells.

Answer 2

nondisjunction

Question 3

CAUSES
_________-
The extra chromosome is in every cell in the baby’s body
Most common type (95%)

________-
Only a portion of the extra chromosome is present in the cells
Rare (2%)

_________-
The extra chromosome 18 is present in only some of the cells
Some babies may only be mildly affected while some can be severely disabled.

Answer 3

Full Trisomy
The extra chromosome is in every cell in the baby’s body
Most common type (95%)

Partial Trisomy
Only a portion of the extra chromosome is present in the cells
Rare (2%)

Mosaic Trisomy
The extra chromosome 18 is present in only some of the cells
Some babies may only be mildly affected while some can be severely disabled.

Question 4

During Pregnancy
-Very little ___-activity
-A single artery in the ______
-A small ____
-The fetus is surrounded by too much_____

Answer 4

-Very little fetal activity
-A single artery in the umbilical cord
-A small placenta
-The fetus is surrounded by too much amniotic fluid