Strain-specifictransgene methylation occurs early in mouse developmentand can be recapitulated in embryonic stem cells. Develop-ment 121: 2853â2859.Wigler, M., Levy, D., and Perucho, M. 1981. The somatic repli-cation of DNA methylation. Cell 24: 33â40.Wolffe, A.P., Jones, P.L., and Wade, P.A. 1999.
1 Toronto remains a mosaic of many languages. In 2006, forty-seven percent of the population had a mother tongue in a language other than English or French. 2  The top 5 mother tongue languages in 2006 were:  Chinese (420,000);
In Canada we have enough to do keeping up with two spoken languages without trying to invent slang, so we just go right ahead and use English for literature, Scottish for sermons and American for conversation. -- Stephen Leacock. Canadians are proud of their cultural heritage and linguistic diversity.