单词 | primer |
释义 | prim·er 2 (prīmər) n. 1. A cap or tube containing a small amount of explosive used to detonate the main explosive charge of a firearm or mine. 2. An undercoat of paint or size applied to prepare a surface, as for painting. 3. Genetics A segment of DNA or RNA that is complementary to a given DNA sequence and that is needed to initiate replication by DNA polymerase. |
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