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a. During a microscopy lab, your lab partner is observing a cell that is centered in the field of view. He complains that as he changes the objective lens from 20x to 40x, some of the features of the cell disappear. What explanation would you give him, and what advice […]

How can you explain the fact that a patient who has cardiac ischemia as indicated by angina pectoris, and who survives a cardiac infarction, may be relieved of his pain afterwards? What are some of the sites of predilection of coronary occlusion? Given an atherosclerotic obstruction of the left circumflex […]

1) The liquid portion of the blood is known as ______. Most of the plasma is composed of ______ that serves as a solvent and carries heat. ______ Such as sodium, potassium and ______ serve to maintain the osmotic balance in the blood. The protein ______ helps to maintain thickness of […]

The gene encoding a hormone necessary for insect development contains DNA binding sites for three gene regulatory proteins called A, B, and C. Because the binding sites for A and B overlap, A and B cannot bind simultaneously. You experimentally create a mutation in the binding sites for each of […]