Oxygen and carbon dioxide exchange between the circulatory system and tissues occurs at the
a. arteries.
b. veins.
c. venules.
d. arterioles.
e. capillaries.
E
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Inactive G proteins are ____
a. bound to GMP b. bound to GDP c. bound to GTP d. phosphorylated e. unphosphorylated
What would be observed by live-cell fluorescence microscopy immediately after HIV entry if HIV is endocytosed first, and then later fuses with the endocytotic vesicle membrane?
A) A spot of red fluorescence will be visible on the infected cell's plasma membrane, marking the site of membrane fusion and HIV entry. B) The red fluorescent dye-labeled lipids will appear in the infected cell's interior. C) A spot of red fluorescence will diffuse in the infected cell's cytoplasm. D) A spot of red fluorescence will remain outside the cell after delivering the viral capsid.
________ can exist integrated into the bacterial chromosome or as an autonomous plasmid unit in the cytosol
A) Episomes B) Col plasmid C) R factor D) F? plasmid E) Temperate phages
A recombinant plasmid created during a recombinant DNA experiment:
A) carries and allows expression of a foreign gene of interest. B) can be used to insert bacterial genes into a human. C) consists only of extra-chromosomal bacterial DNA. D) functions to remove specific genes from a plant. E) is used in whole organism cloning.