What would happen if a peptide hormone receptor was expressed in the nucleus like a steroid hormone receptor? What will be an ideal response?
ANSWER: The hormone would not be able to induce function on that cell. Unlike steroid hormones,
peptide hormones cannot cross the cell membrane. As a result, the hormone would not be
able to bind its receptor.
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A cephalopod's tentacles are modified from its _____
A) mantle B) visceral mass C) foot D) shell E) radula
Archibald Garrod called genetic disorders of biochemical pathways ____________________
Fill in the blank(s) with correct word
The aortic semilunar valve
A. is the location of the pacemaker cells of a normal heart. B. prevents blood flow from the right ventricle to the right atrium. C. prevents blood flow from the left ventricle to the left atrium. D. prevents blood flow from the pulmonary artery to the right ventricle. E. prevents blood flow from the aorta to the left ventricle.
In trees, such as the horse chestnut, the abscission of leaves and fruits in the fall is mediated by ____.
A. abscisic acid B. auxin C. ethylene D. cytokinin E. gibberellin