Autosomal dominant

Sex-linked

Autosomal recessive

Maternal

C.

B.

A.

D.

The number of neural crest cells that migrate to the face.

Species-specific neural crest information.

The amount of chocolate that a bird can eat in 60 minutes.

Endogenous Noggin expression in migrating neural crest cells

In the fusing palatal shelves

In the primary palate

In the nuclei of secondary palate cells

Not in the secondary palate

Tongue

precursor tissue before fusion.

The left upper

mandible.

The forming secondary palate.

Branchial # 1 (BA1) fails to form, but all others do form

All branchial arches develop as arch 1 (BA1) 

Branchial arch 1 (BA1) develops as arch 2 (BA2)

No branchial arches form in the embryo

The jaw bones 

The thyroid gland

Malleus, incus and stapes of the inner ear