DNA is composed of repeating units of sugars, phosphates, and nucleic acids. This is an example of a
A. polymer.
B. monomer.
C. salt.
D. micelle.
E. lipid.
Answer: A
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Starting with a single piece of dsDNA, after 3 PCR cycles there are
A. 2 additional pieces of dsDNA. B. 4 additional pieces of dsDNA. C. 8 additional pieces of dsDNA. D. 16 additional pieces of dsDNA.
HIV infection and the subsequent destruction of which cell type is most devastating to overall immune system function?
A. cytotoxic T cells B. memory B cells C. helper T cells D. monocytes E. natural killer cells
Which of the following is both a hypersensitivity disorder and an autoimmune disorder?
A) anaphylaxis B) glomerulonephritis C) graft rejection D) hemolytic disease of the newborn E) rheumatoid arthritis
Compare and contrast ionic bonds, covalent bonds, polar covalent bonds, and hydrogen bonds. Explain how valence electrons are involved in the formation of each
What will be an ideal response?