释义 |
nested polymerase chain reaction (PCR) nest·ed pol·y·mer·ase chain re·ac·tion (PCR) (nest'ĕd pŏ-lim'ĕr-ās chān rē-ak'shŭn) Use of PCR in series, so that a specified piece of DNA is amplified, and then a portion contained within the first piece is amplified further; used where extremely low amounts of DNA are present, or where there are problems with background or contaminating DNA. |