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);
French is not the only linguistic minority in Canada, and some of the languages spoken, in order of popularity, are Chinese, Italian, German, Polish, Spanish, Portuguese, Punjabi, Ukrainian, Arabic, Dutch, Tagalog, Greek, Vietnamese, Cree and Inuktitut (Statistics Canada, 1996).