Sue has begun to lactate, but she has not recently given birth. Which of the following might be causing this abnormality?
A) excess estrogen
B) progesterone production
C) hyperthyroidism
D) pituitary tumor
D
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Proteins that do not refold properly after being heated generally require the assistance of which one of the following types of molecules in vivo?
A. polymerases B. ribosomes C. enhancers D. chaperones E. transferases
Star-shaped neuroglia are called astrocytes
____________________ Indicate whether the statement is true or false.
The tetrahedron shape of a methane molecule is the result of orbital hybridization
__________________ Indicate whether the statement is true or false.
The electron transport chain provides the energy for
A. oxidative phosphorylation. B. substrate-level phosphorylation. C. beta-oxidation. D. photophosphorylation. E. anabolic reactions.