Discuss briefly how a probe is used in molecular diagnostics.

Explanation

### Step-by-Step Solution:

1. **Understanding Probes**: Probes are short strands of DNA or RNA that are labeled with a radioactive or fluorescent marker. They are designed to bind specifically to complementary sequences in the target DNA or RNA.

2. **Preparation of the Sample**: In molecular diagnostics, a sample containing the genetic material (DNA or RNA) from a patient is collected. This genetic material can be single-stranded or double-stranded.

3. **Tagging the Probe**: The probe is tagged with a radioactive molecule or a fluorescent marker. This tagging allows for the detection of the probe once it has bound to the target sequence.

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