246 



BIOLOGY OF THE LABORATORY MOUSE 



Table of Negative Linkage Data. — {Continued) 



* Crossover per cents greater than 57.3 are not given in Stevens' tables. 

 t The waltzing and shaker-2 animals were grouped into one class; the expected ratio is 

 83:65. 



X Waved-i as well as rex was involved in this backcross, giving an expected ratio of 



3:3:1:1- 



Castle.* In the case of Fo data, the crossover per cent and the standard 

 error have been calculated from the tables given by Stevens, t In the case of 

 all data from mixed crosses (MC) the data are given in full. The data are 

 given in such order that the expected ratio is A B:Ab:aB:ab: ■.^:^: 1:1, and 

 of the last two numbers, the one that represents the crossover class is given 

 in italics. 



BIBLIOGRAPHY 



No attempt can be made in this chapter to cover completely the ver>' extensive 

 bibliography dealing with the genetics of the house mouse. Important references 



* Castle, W. E., 1934. Outline for a laboratory course in genetics. Harvard Univ. 

 Press, Cambridge. 



t Stevens, W. L., 1939. Tables of the recombination fraction estimated from the 

 product ratio. J. Genet. 39: 171-180. 



