Philosophy of Biology

312 Margaret Morrison decreasing step-by-step in a geometrical ratio with great rapidity”.^1 This also marked the introduction o ...

The Development of Population Genetics 313 sires and dams.” (p.34). In other words, any extremes caused by selection would be re ...

314 Margaret Morrison P 0 =^1 / 2 (σ 0 /σ 1 P 1 )+^1 / 4 (σ 0 /σ 2 P 2 ) + 1/8 (σ 0 /σ 3 P 3 )... P 0 is the predicted deviation ...

The Development of Population Genetics 315 from one position of organic stability to another. Proponents of saltation, par- ticu ...

316 Margaret Morrison “hybrid” and “pure type”. During the period 1889-1900 de Vries was also promoting the idea that hered- ita ...

The Development of Population Genetics 317 progress in the theory of evolution since no tabulation of individual instances could ...

318 Margaret Morrison stable equilibrium should be established from the second generation. In other words, no dominant character ...

The Development of Population Genetics 319 tained over successive generations? The reason for the stability could be traced dire ...

320 Margaret Morrison Mendelian principles using biometric techniques, Pearson claimed that a general pure gamete theory was too ...

The Development of Population Genetics 321 particular organs of the offspring could be calculated from those of the parents and ...

322 Margaret Morrison where two independent causes of variability acting together produce a variance which is the sum of the var ...

The Development of Population Genetics 323 The simplifyingmethodologicalassumptions involving independence and an in- definitely ...

324 Margaret Morrison There were a variety of assumptions required for the specification of each of the individual Mendelian fac ...

The Development of Population Genetics 325 4 GENES AND SELECTION: THE SYNTHESIS ESTABLISHED Although Fisher’s synthesis of Mende ...

326 Margaret Morrison but their relative importance was unknown. Wright was able to extend his method to include cases where cau ...

The Development of Population Genetics 327 The other important component in the analogy with gas theory was the fact that the di ...

328 Margaret Morrison variance in fitness is in fact the variation resulting from the additive effects of genes. But the very no ...

The Development of Population Genetics 329 such regularity was guaranteed by the same circumstances that made a statistical asse ...

330 Margaret Morrison with another dimension measuring degree of fitness, then we can think of the field as comprising several p ...

The Development of Population Genetics 331 was simply not an option. Without invoking Wright’s adaptive landscape theory we can ...