Cancer can be described as a loss of cell cycle regulation.
a. true
b. false
Ans: a. true
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A key difference between transforming plant cells and human cells is
A. genes to be expressed in human cells require a eukaryotic promoter, and genes to be expressed in plants don't. B. DNA cannot be introduced into human cells. C. Agrobacterium is commonly used as a tool to directly transform plant cells but not human cells. D. a vector is needed to introduce DNA into human cells and not plant cells.
A carbon atom with six protons, seven neutrons, and six electrons has a mass number of ____
a. 6 b. 7 c. 12 d. 13 e. 19
What type of molecule does radiation principally interact with within the human body?
a) Water b) DNA c) Macromolecules d) RNA
Demographic studies include all of the following except what?
A. Age structure B. Growth rates C. Sex ratio D. Measurements of interspecific competition E. Mortality and survivorship curves