References

1

Boyd, R. & Richerson, P.J. (1985) Culture and the Evolutionary Process. Chicago: the university of Chicago Press.

2

Brink, R. A., 1962 Phase changes in higher plants and somatic cell heredity. Quart. Rev. Biol. 37, 1-22.

3

Cavalli-Sforza, L.L. & Feldman, M.W. (1981) Cultural transmission and evolution: a quantitative approach. Princeton University Press.

4

Foster, P. L. & Cairns J. (1992). Mechanisms of directed mutation. Genetics 131, 783-789.

5

Galef, B. G. (1988). Imitation in animals: history, definitions, and interpretations of data from the psychological laboratory. In: Social Learning: Psychological and Biological Perspectives (Zentall, T.A. & Galef, B. G. eds.). pp 3-28. New Jersey: Lawrence Erlbaum.

6

Holliday, R. (1987). The inheritance of epigenetic defects. Science 238, 163-170.

7

Ishii, K., H. Matsuda, Y. Iwasa, & Sasaki A. (1989). Evolutionary stable mutation rate in a periodically changing environment. Genetics 121, 163-174.

8

Jablonka, E., & Lamb M. J. (1989). The inheritance of acquired epigenetic variations. J. Theo. Biol. 139, 69-83.

9

Jablonka, E., M. Lachmann, & Lamb M.J. (1992). Evidence, mechanisms and models for the inheritance of acquired characters. J. Theoret. Biol. 158, 245-268.

10

Jablonka, E., B. Oborny, I. Molnár, É. Kisdi, J. Hofbauer & T. Cazárán (1995). The adaptive advantage of phenotypic memory in changing environments. Phil. Trans. R. Soc. B. In Press.

11

Jollos, V. (1921). Experimentelle Protistenstudien. I. Untersuchungen über Variabilität und Vererbung bei Infusorien. Archiv für Protistenkunde 43, 1-222.

12

Kimura, M. (1967). On the evolutionary adjustment of spontaneous mutation rates. Genet. Res. 9, 23-34.

13

Leigh, E. G. (1970). Natural selection and mutability. Am. Nat. 104, 301-305.

14

Leigh, E. G. (1973). The evolution of mutation rates. Genetics 73, (Supplement) s1-s18.

15

Lenski, R. E., & Mittler, J. E. (1993). The directed mutation controversy and neo-Darwinism. Science 259, 188-194.

16

Levins, R. (1967). Theory of fitness in a heterogenous environment. VI. The adaptive significance of mutations. Genetics 56, 163-178.

17

Liberman, U. & Feldman M. (1986). Modifiers of mutation rate: a general reduction principle. Theoret. Pop. Biol. 30, 125-142.

18

Moxon, E. R., P. B. Rainley, M. A. Nowak, & Lenski, R. E. (1994) Adaptive evolution of highly mutable loci in pathogenic bacteria. Curr. Biol. 4, 24-33.

19

Nou, X., B. Skinner, B. Braaten, L. Blyn, D. Hirsch, & Low D. (1993). Regulation of pyelonephritis-associated pili phase-variation in : binding of the Papl and the Lrp regulatory proteins is controlled by DNA methylation. Mol. Microbiol. 7(4), 545-553

20

Maynard Smith, J. (1990). Models of a dual inheritance system. J. Theor. Biol. 143, 41-53.

21

Nanney, D. L. (1960). Microbiology, developmental genetics and evolution. Am. Nat. 94, 167-179.

22

Pillus, L., & J. Rine (1989) Epigenetic inheritance of transcriptional states in Cell 59, 637- 647.

23

Plotkin, H.C. & Odling Smee F.Y. (1979). Learning, Change and Evolution: an enquiry into the teleonomy of learning. Advan. Stud. Behav. 10, 1-41.

24

Robertson, B. D. & Meyer T.F. (1992) Genetic variation in pathogenic bacteria. Trends Genet. 8(12), 422-427.

25

Sachs, T. (1988). Epigenetic selection: an alternative mechanism of pattern formation. J. Theor. Biol. 134, 547-559.

26

Schneeberger, R. G., & Cullis C. A. (1991). Specific DNA alterations associated with the environmental induction of heritable changes in flax. Genetics 128, 619-630.

27

Soll, D.R., B. Morrow, & Srikantha T. (1993). High-frequency phenotypic switching in Trends Genet. 9,61-65.

28

Watson, J. D., N.H. Hopkins, J. W. Roberts, J. A. Steitz, & Weiner A. M. (1987). Molecular Biology of the Gene. Fourth Edition, Chapter 22. Benjamin Cummings, Melno Park, Calif.

 
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