Which of the following choices would help prevent foodborne bacterial illnesses?
A) Washing
B) Pasteurization
C) Boiling
D) Dessicating
E) All of the choices would help prevent foodborne bacterial illnesses.
E) All of the choices would help prevent foodborne bacterial illnesses.
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__________ refers to an organism’s response to changes in the length of day relative to night. Fill in the blank(s) with the appropriate word(s)
In order to infect a cell, a virus must
A. have a special protein on its surface that can interact with a protein receptor on the surface of the host cell. B. produce a special extension of its cytoplasm when it comes into contact with the appropriate host cell. C. inject its protein into the cell while the nucleic acid remains attached to the host cell surface. D. active burrow through the cell wall or cell membrane of the host cell to reach the cell's nucleus.
Which one of the following components of blood increase in number in response to the presence of an infectious agent?
A) clotting factors B) albumins C) white blood cells D) red blood cells E) platelets
A certain mutation in the receptor for epidermal growth factor (EGF) causes the mutated receptor protein to send a positive signal along the associated intracellular signaling pathway even when the EGF ligand is not bound to it
This signal leads to abnormal cell proliferation in the absence of growth factor. On the basis of this information, would you class the gene for the EGF receptor as a tumor suppressor gene or a potential oncogene? Explain your answer.