If a shoot’s tip breaks off, its source of auxin disappears, so the __________ level rises in the stem. Fill in the blank(s) with the appropriate word(s)


ANSWER: cytokinin

Biology & Microbiology

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Watson and Crick developed a model of DNA in which the two strands twist into the shape of a ________________. 

A. circle B. helix C. double helix D. double pleated sheet

Biology & Microbiology

Answer the question using the accompanying graph. Which portion of the graph shows the activation energy in the

absence of enzyme?

a. A b. B c. C d. W + X e. Y + Z

Biology & Microbiology

A _________ relationship is one in which two or more kinds of organisms live together in often elaborate and more or less permanent association. 

A. symbiotic B. parasitic C. mutualistic D. synergistic

Biology & Microbiology

Protein folding in the ER is assisted by a chaperone called

a. BiP. b. PiP. c. Hsp60. d. Hsp90.

Biology & Microbiology