Hormone A binds to intracellular receptors in its target tissue. As a result of Hormone A, the target
tissue is now sensitive or responsive to Hormone B. The action of Hormone A was to
a. decrease mRNA for Hormone A receptors.
b. increase receptor sites for Hormone B.
c. increase receptor sits for Hormone A.
d. increased cyclic AMP levels which activated receptors for hormone B.
e. decrease receptor sites for Hormone B.
B
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A chemical reaction that has a positive ?G is correctly described as
A. endergonic. B. endothermic. C. enthalpic. D. spontaneous E. exothermic.
An atom with more protons than electrons is called a(n) __________. Fill in the blank(s) with the appropriate word(s)
Subtle differences in DNA sequences that vary from person to person are called ________
A) genomics B) chromosomes C) DNA microarrays D) pharmacogenomics E) single-nucleotide polymorphisms
Amphibian eggs have large amounts of yolk at the __________ pole, and most metabolism takes place
at the __________ pole. a. animal; vegetal b. animal; animal c. vegetal; vegetal d. vegetal; animal e. totipotent; telolecithal