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Genes of interest can be selected from a genomic library by using

1. Restriction enzymes
2. Cloning vectors
3. DNA probes
4. Gene targets

Correct answer: DNA probes

Solution

DNA probes are short, labeled nucleic acid sequences that hybridize to complementary DNA in a genomic library, allowing the desired gene clone to be identified. Restriction enzymes cut DNA, and cloning vectors carry inserts, but neither directly selects the gene of interest.

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