How are cancer cells different from noncancerous cells?
A. Cancer cells do not contain DNA; therefore, the body cannot regulate their growth and division.
B. Cancer cells do not respond to the normal signals that shut down the cell division process.
C. Cancer cells are neither recognized nor destroyed by the body's immune system.
D. Cancer cells grow to extremely large sizes, forming tumors that block the flow of blood.
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In trying to determine whether dna or protein is the genetic material, hershey and chase made use of which of the following facts? a) dna contains sulfur, whereas protein does not. b) dna contains phosphorus, whereas protein does not. c) dna contains nitrogen, whereas protein does not. d) dna contains purines, whereas protein includes pyrimidines.
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Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. once a virus gains entry into the body, it invades a host cell in order to? a. synthesize antibodies for defense b. deactivate the host cell's defenses c. access cell processes for reproduction d. metabolize host proteins and grow
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How are cancer cells different from noncancerous cells?
A. Cancer cells do not contain DNA; therefo...
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