Regarding detection methods,the most common and preferred sequence-specific label for probes used in nucleic acid analysis is a(n)_____ label.

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Fluorescent labels are preferred for nucleic acid analysis because they offer a high signal-to-noise ratio, are easy to detect with appropriate equipment, and are not hazardous to handle. They can also be detected directly without the need for additional amplification steps. Enzyme and colorimetric labels are also commonly used, but they may require additional steps for signal detection and can have higher background noise levels. Radioactive labels are declining in popularity due to safety concerns and regulatory restrictions.

Regarding Detection Methods,the Most Common and Preferred Sequence-Specific Label for Probes