单词	nucleic acid
释义	nucleic acid noun nu·​cle·​ic acid nu̇-ˈklē-ik-  -ˈklā-  nyu̇- : any of various complex organic acids (such as DNA or RNA) that are composed of nucleotide chains Example Sentences Recent Examples on the Web Secretary for Constitutional and Mainland Affairs Erick Tsang and director of the Chief Executive's Office Eric Chan both tested positive through nucleic acid tests and are undergoing isolation, a Hong Kong government statement said on Thursday. Kathleen Magramo, CNN, 24 June 2022 The city carried out more than 18 million nucleic acid tests during the 4-day period. Bloomberg.com, 31 Mar. 2022 Transmissibility in an area is considered high when there are 100 or more new cases per 100,000 in the past seven days, and 10% or higher positive nucleic acid amplification tests (NAATs) in that period. Daniella Medina, USA TODAY, 25 Aug. 2021 Japan requires a nucleic acid amplification test, such as a PCR test, which tends to be less accessible and more expensive than at-home rapid antigen tests. Julia Mio Inuma, Washington Post, 24 Aug. 2022 People line up for nucleic acid testing at a temporary Covid-19 testing site on April 8, 2022 in Sanya, Hainan Province of China. Grady Mcgregor, Fortune, 5 Aug. 2022 But a problem arises in people like Piqueras, whose TLR7 receptors can’t distinguish between genetic material in potentially dangerous viruses, and guanosine, a nucleic acid found in the body’s own RNA. Isabella Cueto, STAT, 18 June 2022 Ahead of his arrival in Hong Kong, thousands of guests — including top officials, lawmakers and diplomats — checked in to quarantine hotels earlier this week and have been taking daily nucleic acid tests as part of coronavirus precautions. Fox News, 30 June 2022 Airlines, railways, global passenger and cargo transportation are all operating normally during the new round of nucleic acid testing, Wu Jinglei, director of the Shanghai Heath Commission, said at a press conference on Monday. Bloomberg.com, 27 Mar. 2022 See More Word History Etymology from their occurrence in cell nuclei First Known Use 1892, in the meaning defined above Medical Definition nucleic acid noun nu·​cle·​ic acid n(y)u̇-ˌklē-ik-  -ˌklā-  : any of various acids (as an RNA or a DNA) composed of nucleotide chains
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