If There Is Failure of Migration of the Neural Crest

question 15

Multiple Choice

If there is failure of migration of the neural crest cells to the facial region during prenatal development,_____ can develop in the embryo.

• A) ectodermal dysplasia
• B) fetal alcohol syndrome
• C) Down syndrome
• D) Treacher Collins syndrome

---

Definitions:

Hot Spots

Areas of the Earth's mantle that are anomalously hot compared to surrounding areas, causing volcanic activity on the surface.

Linear Island Chains

Linear arrangements of islands, often volcanic, aligned along a single submarine ridge due to tectonic activity.

Oceanic Plateaus

Large, flat, elevated areas of the seabed, formed by volcanic activity and often found in the deep ocean.

Mantle Plumes

Columns of hot, solid material that rise from deep within the Earth's mantle and can cause volcanic hotspots.