| 单词 | saltatory replication |
| 释义 | > as lemmassaltatory replication 3. Biology. saltatory replication, a hypothetical evolutionary event in which very many identical copies of a short section of DNA are added to a genome. ΘΚΠ the world > life > biology > biological processes > genetic activity > [noun] > changes or actions of genes or chromosomes > replication > saltatory replication saltatory replication1968 1968 R. J. Britten in Carnegie Inst. Year Bk. 1966–7 72/2 Saltatory replications, the hypothetical events by which families of hundreds of thousands of similar nucleotide sequences are produced in the DNA of an organism... Families are produced in a time short compared to the time required for their loss by divergence (a few hundred million years). 1968 R. J. Britten & Kohne in Carnegie Inst. Year Bk. 1966–7 84/1 Events in which very many copies [of a DNA segment] are made in a short time interval (saltatory replication). Evidence is now available which clearly indicates saltatory replication. 1968 R. J. Britten & Kohne in Carnegie Inst. Year Bk. 1966–7 88/1 A saltatory replication producing 100,000 copies of the right sort of gene is a candidate for a genetic event with immense potentiality. 1970 Nature 12 Dec. 1043/2 Such gene expansion has been designated saltatory replication and is illustrated in Fig. 1 C. < as lemmas |
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