polymerasen.

1948 Science 9 Apr. 377/1 Attempts were made to increase the yield of desoxyribonucleic acid by adding citrate or phosphate ions to the glycine solution in order to bind magnesium ions, which presumably activate nucleases or polymerases.

1958 Jrnl. Biol. Chem. 233 163/2 The enzyme responsible for deoxyribonucleotide incorporation is designated as ‘polymerase’.

1964 New Scientist 23 Jan. 211/1 DNA has been bio-synthesised from its four basic building blocks put together with the enzyme polymerase and some natural DNA to act as a template.

1973 B. J. Williams Evol. & Human Origins vi. 89/1 RNA polymerase is active when the cell is carrying on its normal metabolic functions.

1994 J. Cohen & I. Stewart Collapse of Chaos iii. 81 There are special sequences on the RNA, called ribozymes, which act like enzymes to cut and paste the RNA sequences that the polymerases copy from the DNA.

2004 Photosynthesis Res. 81 105 Plants also possess..bypass polymerases that enable the plant to replicate its DNA in the absence of DNA repair.

1985 R. K. Saiki et al. in Science 20 Dec. 1350/3 The β-globin segment was amplified by the polymerase chain reaction (PCR) procedure of Mullis and Faloona.

1996 P. H. Duesberg Inventing AIDS Virus vi. 180 The very ability of retroviruses to survive as dormant genes by attaching themselves to human chromosomes has been exploited for the most sensitive HIV assay yet—the Polymerase Chain Reaction.

2000 New Scientist 11 Nov. 89/1 (advt.) Applications are invited for a Technician to work on a project to detect micrometastases in primary breast cancer patients using a combination of immunocytochemistry and quantitative polymerase chain reaction.