Consider a protein that is targeted to be excreted to the outside of the plasma membrane. Where would this protein be located in the Golgi?
A) outside the Golgi as a peripheral membrane protein
B) embedded as an integral membrane protein in the Golgi membrane
C) in the lumen (inside) of the Golgi
Answer: C) in the lumen (inside) of the Golgi
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An episome is
A. a plasmid that can make bacterial cells resistant to antibiotics. B. a plasmid that gives bacteria the ability to degrade toluene. C. a plasmid that can integrate into the bacterial genome. D. a plasmid that can turn a bacteria that is harmless into a strain that can cause disease. E. a plasmid that gives bacteria the ability to exchange DNA with another bacterial cell.
There is a mutation in the operator of the trp operon in a cell such that the trp repressor is unable to bind to the operator. If tryptophan is added to the cell, what will happen?
A) Tryptophan will bind to the repressor, and trp enzymes will be produced. B) Tryptophan will bind to the repressor, and trp enzymes will not be produced. C) Tryptophan will not bind to the repressor, and trp enzymes will be produced. D) Tryptophan will bind to the operator, and trp enzymes will be produced.
The most prevalent type of antibody in the blood is
A) IgD. B) IgM. C) IgA. D) IgG. E) IgE.
Animals tend to feed on prey that maximize their net energy intake. This is called the ________ theory.
A. maximal consumption B. competitive exclusion C. optimal foraging D. optimization