Mesoderm gives rise to the ________
A) heart and kidneys
B) brain and skin
C) nervous system and thyroid
D) liver and pancreas
A
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Aneuploidy (the gain or loss of chromsomes) is associated with which protein molecule in cancer cells?
A) pRB B) p53 C) Myc D) Blc-2 E) all of the above
In the crystal matrix of ordinary salt, the sodium and chlorine are held together by:
A. peptide bonds. B. covalent bonds. C. ionic bonds. D. hydrogen bonds. E. nonpolar bonds.
You wish to design a drug that acts against a recently identified retrovirus. Based upon what you know about retroviruses, which of the following would be the best target for specifically interrupting the viral life cycle in eukaryotic cells?
A) primase B) 30S ribosomal subunits C) reverse transcriptase D) RNA polymerase E) DNA polymerase
Which of the following statements about the glomerulus is INCORRECT?
A. It is composed of capillaries. B. It is connected to two arterioles. C. Small molecules move from the glomerular (Bowman's) capsule into the glomerulus. D. It is surrounded by the glomerular (Bowman's) capsule. E. Blood pressure primarily accounts for filtration.