Examlex
During embryonic development, the initial skeleton is made of ________.
Melanin Synthesis
The biological process by which cells produce melanin, a pigment found in the skin, hair, and eyes of animals, responsible for coloration and protection against ultraviolet radiation.
Tyrosine
An amino acid that is a precursor to neurotransmitters like dopamine and norepinephrine, important for protein synthesis and many metabolic pathways.
Chorion
The outermost membrane enclosing the embryo in eggs of birds, reptiles, and mammals.
Early Prenatal Diagnosis
The practice of detecting congenital disorders or diseases in a fetus early in pregnancy.
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