In molecular diagnosis the labelled single strand used is called a:
ALigase
BProbe
CVector
DPrimer
Answer & Solution
Correct answer: B. Probe
1. A single stranded DNA or RNA carries a radioactive tag.
2. It hybridises only where the sequence matches.
3. Such a tagged strand is called a probe.
_Source: syllabus Biology, Ch 10 'Biotechnology and its Applications'_
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