A mutation in the DNA-binding domain of a steroid hormone receptor is most likely to affect what aspect of receptor function?
A. The binding of the hormone to the receptor
B. The cellular response to the hormone
C. The translocation of the receptor to the nucleus
D. The conformational change of the receptor
Answer: B
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A construction company has cleared all the trees from an area near a river in order to build luxury homes with unobstructed views of the river. What do you predict will be the effects of this action? Check all that apply.
_____ An increase in the volume of water running off into the river. _____ A decrease in the amount of nutrients leached from the soil. _____ An increase in the concentration of nutrients in the run off entering the river. _____ A build up of inorganic nutrients in the soil of the deforested area. _____ Increased weathering of rocks in the deforested area.
Characters that provide evidence for evolutionary relationship are
a. homologous. b. analogous. c. taxonomic. d. convergent. e. morphological.
Receptor mediated endocytosis:
A. is involved in receptor recycling B. involves cell membrane fusion C. can involve the protein clatherin D. can induce a refractory period for signal transduction E. all of the above
The formation of peptide bonds is catalyzed by which portion of the bacterial ribosome?
a. Proteins of the small subunit b. 16S rRNA c. Proteins of the large subunit d. 23S rRNA