. An analysis of the effects of selection. Natural selection. AN ANALYSIS OF THE EFFECT OF SELECTION. Table 17.—Inbred PVus Lines Crossed. 21 Generation. n Fa. 192 689 M : .022 .817=t .015 1941 Set Alone. Fi. 42 279 F2 [Total. 605 F, 395 210 [ 303 F4 ] 270 [ 33 1,789 .034 .018 .023 .031 .020 .022 .069 .843=t .024 .666=t .013 .677=t .016 .649± .022 .533=t .014 .526=fc .015 .588=t .049 - .036=fc .027 + .131=1= .038 1 Does not
. An analysis of the effects of selection. Natural selection. AN ANALYSIS OF THE EFFECT OF SELECTION. Table 17.—Inbred PVus Lines Crossed. 21 Generation. n Fa. 192 689 M : .022 .817=t .015 1941 Set Alone. Fi. 42 279 F2 [Total. 605 F, 395 210 [ 303 F4 ] 270 [ 33 1,789 .034 .018 .023 .031 .020 .022 .069 .843=t .024 .666=t .013 .677=t .016 .649± .022 .533=t .014 .526=fc .015 .588=t .049 - .036=fc .027 + .131=1= .038 1 Does not include culture 2054, in which the mother was Fig. 10.—Means and standard deviations for cross of two inbred plus lines. Fig. 11.—Means and standard deviations for cross of 1002 inbred plus and speck (1331) minus lines. was nearly the same as that in Fi, the F2-F3 and F3-F4 parent-offspring correlations were not significantly different from 0, and the means of the plus and minus selected series in F3 and F4 were practically identi- cal. This constitutes practically a proof that the two lines did not differ with respect to modifying genes. The result, while surprising, is by no means highly improbable on the multiple-factor view. The. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Sturtevant, A. H. (Alfred Henry), 1891-1970. Washington, Carnegie Institution of Washington
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjectnaturalselection
