The short, branched extensions that receive input from other neurons are the
A. dendrites.
B. axons.
C. synapses.
D. nuclei.
E. nodes of Ranvier.
A. dendrites.
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Suppose you are culturing tobacco callus in a Petri dish at a 10:1 ratio of auxin to cytokinin. To promote only shoot
development you would ____.
a. increase the cytokinin ratio b. increase the auxin ratio c. reduce the auxin level significantly and increase the cytokinin level slightly d. grow the tobacco in the dark e. grow the tobacco in the light
Cells lining parts of the respiratory tract have numerous short filamentous structures known as ________ on their surfaces, which beat in unison and move materials through the airways
Fill in the blank(s) with correct word
All of the following statements about Vibrio Cholerae enterotoxin are true EXCEPT:
A. Acts on cells of the small intestine B. There are two major subunits, A and B C. Subunit B is responsible for binding of the toxin D. Toxic activity resides in subunit B
Analysis of a bacterial gene indicates that 24% of the nucleotides in the coding strand contain the base A, 18% contain the base T, 26% contain the base G, and 32% contain the base C. What percent of the nucleotides in the mRNA transcribed from this gene will contain the base U? (Enter your answer as a number only, without the percent sign; e.g., enter 5, not 5%.)
Fill in the blank(s) with the appropriate word(s).