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Which of the following statements regarding microarrays is NOT true?
A. Oligonucleotide probes immobilized on a glass slide or chip recognize sequences in "free-floating" samples of complementary DNA (cDNA) isolated from cells or tissues of interest.
B. Microarrays rely on complementary hybridization to evaluate gene expression in different biological conditions.
C. "Free-floating" probes recognize complementary RNA sequences in the sample.
D. Researchers can use microarrays to evaluate how gene expression changes throughout a biological process



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