The two strands of a DNA molecule are ________; that is, they are oriented in opposite directions.
Fill in the blank(s) with the appropriate word(s).
antiparallel
Biology & Microbiology
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The most widely accepted and supported model that explains the movement of xylem sap is the ____ mechanism
a. cohesion-tension b. translocation c. pressure flow
d. osmosis e. transpiration
Biology & Microbiology
The stomatal opening and closing are under the control of __________
a. ethylene b. cytokinins c. auxins d. abscisic acid e. gibberellins
Biology & Microbiology
Which one of the following cells transmits impulses away from the central nervous system to the muscles and other organs?
A) motor neurons B) interneurons C) sensory neurons D) neuroglia E) dendrites
Biology & Microbiology
The Gram stain works because of differences in the ________ of bacteria
A) genetic characteristics B) cell walls C) cell membranes D) antigens E) capsules
Biology & Microbiology