This stage of the cell cycle is characterized by growth and it contains a checkpoint to verify that all of the DNA has been replicated prior to mitosis.
A. G1
B. G2
C. Cytokinesis
D. Mitosis
E. S
Answer: B
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A. Diabetes B. Cystic fibrosis C. Severe combined immunodeficiency diseases D. Muscular dystrophy
Yellow fever is caused by a protozoan infection
Indicate whether this statement is TRUE or FALSE.
A key is placed into a keyhole then turned and the door opens. When considering the components of cell signaling, the action of turning the key would best correspond to ______.
A. signal transduction that occurs when the receptor binds the hormone B. the cell response that occurs when the receptor binds the hormone C. the concentration of the hormone D. conformational change in the receptor once bound to the hormone E. the binding site of the receptor
In a prokaryotic cell, the DNA can be found where?
a. nucleoid b. nuclear membrane c. nucleus d. chromatin