The codon that will signal where to begin making a polypeptide is ________.
A. AUG
B. TTA
C. AGG
D. TAC
Answer: A
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A subthreshold stimulus evokes only a small muscle twitch instead of a full tetanic contraction
Indicate whether this statement is true or false.
Which of the choices below does not explain why low capillary pressures are desirable?
A) Low blood pressure is associated with longer life span than high blood pressure. B) Low capillary pressure reduces the load of drainage the lymphatic drainage must handle. C) Capillaries are fragile and high pressures would rupture them. D) Most capillaries are extremely permeable and thus even low pressures force solute-containing fluid out of the bloodstream.
Which of the following is an incorrect association?
A) atrioventricular—tricuspid valve B) atrioventricular—aortic valve C) semilunar—pulmonary valve D) atrioventricular—mitral valve E) None of the answers are correct.
Which of the following organs/structures lie in the retroperitoneal space of the abdomen?
A. Liver B. Spleen C. Kidneys D. Superior vena cava