Researchers are developing a ribozyme that cleaves the HIV genome. This pharmaceutical agent could be described as
A) an RNA molecule capable of catalysis.
B) a hydrolase.
C) a genetic transposable element.
D) a protease inhibitor.
E) a competitive inhibitor for reverse transcriptase.
A
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The process seen in many insects involving the pupa completely changing form into an adult is called
a. cephalization. b. coelom formation. c. skeletonization. d. molting. e. metamorphosis.
The glycolysis reactions are represented by the letter ____. What will be an ideal response?
The quick response of the immune system to a second infection is due to
A. activation of macrophage cells. B. suppression of suppressor cells. C. T and B memory cells. D. high levels of antigen. E. new cytotoxic T cells.
Enzymes that are expressed at a constant level all the time are said to be ________.
A. constitutive B. repressible C. attenuated D. inducible