What happens when coleoptiles are illuminated with directional light from the side instead of from directly overhead?  

A.  More auxin is produced.
B.  Less auxin is produced.
C.  Auxin is transported away from the lighted side.
D.  Auxin is transported toward the lighted side.
E.  Auxin receptors are activated.


C.  Auxin is transported away from the lighted side.

Biology & Microbiology

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Polypoidy, which is widespread among plants, can arise from which of the following processes? (Choose all that apply)

A. duplication of a complete set of chromosomes in a single species B. hybridization between related species followed by duplication C. deletion of long stretches of noncoding DNA over time D. introduction of DNA from one species into another via insects and birds E. expansion of regions of highly repetitive DNA

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Endophytic fungi were originally discovered in pine trees

a. True b. False

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Continental crust is composed mostly of iron and magnesium

Indicate whether the statement is true or false

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RNA differs from the DNA because it has ribose as sugar and it has uracil instead of thymine.

Answer the following statement true (T) or false (F)

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