Known sequences of DNA that is used to find complementary DNA strands is
A
vector
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B
DNA probe
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C
plasmid
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D
recombinant DNA
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Solution
The correct option is B DNA probe DNA probe is a molecule (usually a nucleic acid) that has been labelled with a radioactive isotope, dye, or enzyme and is used to locate a particular nucleotide sequence or gene or a DNA molecule.