Which of the following is NOT a characteristic of pUC19's usefulness as a cloning vector?
a. ampicillin resistance for selection
b. easily screenable insertion
c. large size
d. multiple cloning site
Answer: C
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What is the purpose of the cyanogen bromide (CNBr) in the manufacture of insulin and somatostatin by recombinant bacteria?
A. Allows for the uptake of the plasmid B. Enhances the activity of the restriction enzymes C. Creates sticky ends for integration into the plasmid D. Cleaves the protein from the b-galactosidase protein
Which of the following pairs is incorrectly matched?
A. macrophage; class II MHC protein B. B cell; class I MHC protein C. B cell; IL-2 secretion D. helper T cell; CD4 E. cytotoxic T cell; class I MHC protein
Explain why lactose intolerance is considered a variation in gene expression rather than a genetic disorder
What will be an ideal response?
Experiments are carried out to test a hypothesis by changing one variable at a time and including an unchanged variable termed a(n) ________.
A. experimental variable B. control C. stable variable D. altered variable