Which of the following ions is associated with auxin and used during signal transduction that causes a plant to bend towards a light source?
A. H+
B. Ca2+
C. Mg2+
D. Na+
Answer: A
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The breakdown of glucose to pyruvate by a cell is an example of a(n) ________ reaction.
A) anabolic B) aerobic C) catabolic D) amphibolic E) synthesis
While phenotypically male, smaller testes, enlarged breasts, and reduced body hair are all signs of a non-disjunction error condition that results in an XXY genotype. Which kind of error results in XXY genotype, called Klinefelter syndrome?
a. point mutation b. deletion c. non-disjunction d. crossing over
Which of the following indicates the distance, in nucleotides, between genes and genetic markers?
a. physical map b. model organism c. genome sequence d. genetic map
Which of the following is the best definition of "empty magnification"?
A) An image is magnified so much resolution and contrast are lost. B) A specimen is so lacking in color it cannot be observed on a light microscope. C) A magnified specimen is so small it cannot be resolved on a light microscope. D) The background on the field is almost totally black. E) A magnified image has lots of empty space around a small object.