Recombinants described in Fig 3 were crossed to a69 and the number of ommatidia counted expressing Rh5 or Rh6, Total counted, and % Rh5 are indicated in the table. Controls for comparison were homozyg
Just as Koch’s postulates formed the foundation of early infectious disease study, Stanley Falkow’s molecular Koch’s postulates define best practice in determining whether a specific gene contributes