Oscar has type O blood.  His birthmother, Bertha, has type B blood. His birthfather, Alfredo, has type A blood.  What are the genotypes of Oscar’s parents?

The __________ develops into both the trophoblast and the inner cell mass.

The __________ develops into both the trophoblast and the inner cell mass.

Hormones that maintain pregnancy are __________, estrogens, and progesterone.

Oscar has type O blood.  His birthmother, Bertha, has type B blood. His birthfather, Alfredo, has type A blood.  What are the genotypes of Oscar’s parents?

Hormones that maintain pregnancy are __________, estrogens, and progesterone.

The brain and spinal cord develop from the embryonic feature termed the  __________  __________.  (2 words)

The brain and spinal cord develop from the embryonic feature termed the  __________  __________.  (2 words)

The perineum

The perineum