If the gp120 glycoprotein were damaged as a result of a mutation, HIV would have difficulty:
A. attaching its RNA to a host cell's ribosome.
B. leaving a macrophage.
C. assembling the capsid.
D. inserting its genes into the host cell's genome.
E. binding to a host cell.
Answer: E
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Adult members of this lineage of Cnidarians are predominately medusae. They are the true jellyfishes,
and are not active swimmers.
a. Hydrozoa b. Scyphozoa c. Trematoda d. Cubozoa e. Anthozoa
The diffusion of water across a membrane is known as ____
a. osmosis b. active transport c. facilitated diffusion d. movement through a channel e. carrier mediated transport
Polyploidy as a mechanism of speciation occurs most commonly in which of the following life forms?
a. polychaete worms b. fungi c. plants d. salamanders e. molluscs
The inner membrane of the mitochondria can be compared functionally to the thylakoid membranes of the chloroplast because both contain a system for
A) enzyme synthesis. B) glucose synthesis. C) electron transport. D) anaerobic respiration. E) pyruvate production.