RECOMBINATION IN BACTERIOPHAGE 57 



The correlation between the uncorrected proportions of the two recombi- 

 nants is shown in the form of scatter diagrams in fig. 7. These data might be 

 expected to show some degree of spurious correlation owing to the fact that 

 bursts with disproportionate yields of the two parental types tend to contain 

 diminished numbers of both recombinants. This tendency can be seen in the 



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Figure 7.— Correlation between proportionate yields of the two recombinants in single bursts. 

 The open circles indicate bursts with disproportionate yields of the two parental viruses. Crosses 

 indicate yields omitted from the data of table 4. 



164 



