Polytene chromosomes normal.
wild-type
Homozygotes are not clearly distinguishable from wild type.
bw75
bw24
bw81
bw1
Slatis, 16 June 1950.
Shown to lie to right of bw1 and bw75 by recombination; nonrecombinant reversions recovered from bw59/bw81.
Shown to lie to right of bw1 and bw75 by recombination; nonrecombinant reversions recovered from bw59/bw81.