Cancer can be described as a loss of cell cycle regulation.

a. true
b. false


Ans: a. true

Biology & Microbiology

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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.

Biology & Microbiology

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

Biology & Microbiology

What type of molecule does radiation principally interact with within the human body?

a) Water b) DNA c) Macromolecules d) RNA

Biology & Microbiology

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

Biology & Microbiology