| 摘要 |
<p>A method of incorporating an exo-sample nucleotide (e.g. deoxyuridine in DNA) into amplified product strands resulting from a nucleic acid amplification process is disclosed. Once the product strands have been obtained and analysed (e.g. by hybridisation, Southern blot, etc.), the exo-sample strands can be selectively destroyed by acting on the incorporated exo-sample nucleotide. Two procedures are described. In the first procedure the exo-sample nucleotide is incorporated by conducting the amplification reaction in the presence of an excess of exo-sample nucleotide triphosphate. In the second procedure the exo-sample nucleotide is incorporated by conducting the amplification reaction in the presence of an oligonucleotide which has, as part of its sequence, one or more exo-sample nucleotides. <IMAGE></p> |
