Brown eye color requires which of the following? select all that apply.
a) phenylalanine, from which the melanin is made
b) one dominant allele and two recessive alleles
c) genes for the enzymes that synthesize the pigment melanin
a) phenylalanine, from which the melanin is made
c) genes for the enzymes that synthesize the pigment melanin
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A person loses all vision in their left eye. One possible cause could be damage to the
A. left optic tract. B. right lateral geniculate nucleus. C. right visual cortex in the occipital lobe. D. optic chiasma. E. optic nerve in the left eye.
The carina is located at T3/T4.
Answer the following statement true (T) or false (F)
A drug that blocks dopamine receptors is likely to be addictive.
Answer the following statement true (T) or false (F)
The process of forming three germ layers from the embryonic disk is called ________.
A. gastrulation B. fertilization C. differentiation D. meiosis E. implantation