Transcription starts at a ____ and ends at a ____
Two parts for this statement.
Answer: promoter, terminator
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________ indirectly link the extracellular matrix and the cytoskeleton of animal cells.
Fill in the blank(s) with the appropriate word(s).
The most prominent water-borne pathogens of recent times include all of the following except ______.
A. Staphylococcus B. Salmonella C. Norwalk viruses D. Cryptosporidium
In order to activate the cell mediated arm of the
adaptive immune response, which of the following must occur?
a. A naïve helper T cell must bind to an antigen-presenting dendritic cell. b. A naïve B cell must be activated in order to activate the effector helper T cell. c. A free bacterium must pass through a lymph node where it will directly activate the effector helper T cell. d. A damaged or infected body cell must pass through a lymph node in order to activate T cells. e. None of these will activate the cell mediate arm.
Darwin's theory states, in part, that individuals with certain traits have an increased competitive edge. What is the
source of these traits? a. adaptation to stress b. development over a lifetime c. inheritance d. mutation after birth e. better living conditions