官方藏书 / Science_-_Biology / Piebald rats and selection

Piebald rats and selection

William E. Castle · Science_-_Biology · 19 章

目录

The Project Gutenberg eBook of Piebald rats and selection CONTENTS.INTRODUCTION.MATERIAL AND METHODS.Table A.MINUS SELECTION SERIES.RETURN SELECTION.CROSSES WITH WILD RATS.CROSSES WITH BLACK “IRISH” RATS.Table B.—Comparison of the present series with the more general plus selection series.CROSSES OF THE PLUS RACE WITH THE MINUS RACE.SUMMARY OF RESULTS.DISCUSSION.Table C.BIBLIOGRAPHY.Table 22.—Classification of generation 7, minus series.Table 51.—F₁ offspring of the original “mutant” male, 4763, +5½, mated with females of the plus series, and with the “mutant” female, 5153, +5¾.Table 55.—F₂ descendants of the original mutant male, 4763, +5½, mated with females of the minus series. (Compare Table 52.)THE FULL PROJECT GUTENBERG™ LICENSE